ZOLL M2 Manual

ZOLL M2™Operator’s Guide
9650-000860-01 Rev. C

The issue date for the ZOLL M2 Operator's Guide (REF 9650- 000860-01 Rev. C) is September, 2019.
Copyright © 2019 ZOLL Medical Corporation. All rights reserved. CPR-D-padz, Pedi-padz, R Series,
Real CPR Help, Rectilinear Biphasic, RescueNet, Stat-padz, SurePower, X Series, ZOLL, and ZOLL M2 are
trademarks or registered trademarks of ZOLL Medical Corporation in the United States and/or other countries.
All other trademarks are the property of their respective owners.
Suzhou ZOLL Medical Technology Co., Ltd.
Room 102-2, Block 19, No.8 Jinfeng Road
Suzhou New District, 215163 Suzhou
Jiangsu, P.R. China
Manufactured for:
ZOLL Medical Corporation
269 Mill Road
Chelmsford, MA USA
01824-4105
TEL: [phone]
FAX: [phone]
WEB: www.zoll.com
EMAIL: [email protected]
ZOLL International Holding B.V.
Newtonweg 18
6662 PV ELST
The Netherlands
0123

9650-000860-01 Rev. C ZOLL M2 Operator’s Guide i
Table of Contents
Chapter 1 General Information
Product Description ............................................................................................................1-1
Contraindications ........................................................................................................ 1-2
How to Use This Manual..................................................................................................... 1-2
Operator’s Guide Updates .................................................................................................. 1-3
Unpacking........................................................................................................................... 1-3
Starting up the ZOLL M2..................................................................................................... 1-3
Symbols Used on the Equipment ....................................................................................... 1-4
ZOLL M2 Indications for Use .............................................................................................. 1-8
Manual Defibrillation ................................................................................................... 1-8
Semiautomatic Operation (AED) ................................................................................ 1-9
ECG Monitoring .......................................................................................................... 1-9
CPR Monitoring .......................................................................................................... 1-9
External Transcutaneous Pacing ................................................................................ 1-9
SpO2 Monitoring ....................................................................................................... 1-10
ZOLL M2 Product Functions ............................................................................................. 1-10
Defibrillator Function ................................................................................................. 1-10
Defibrillator Output Energy ....................................................................................... 1-10
External Pacemaker ................................................................................................. 1-10
ECG Monitoring ........................................................................................................ 1-11
Electrodes ................................................................................................................. 1-11
Batteries .................................................................................................................... 1-11
Safety Considerations....................................................................................................... 1-12
Warnings........................................................................................................................... 1-13
General ..................................................................................................................... 1-13
ECG Monitoring ........................................................................................................ 1-14
Defibrillation .............................................................................................................. 1-15
Pacing ....................................................................................................................... 1-16
CPR .......................................................................................................................... 1-17
SpO2 ......................................................................................................................... 1-17
Ferromagnetic Equipment ........................................................................................ 1-17
Battery ...................................................................................................................... 1-17
Operator Safety ........................................................................................................ 1-18
Patient Safety ........................................................................................................... 1-19
Cautions............................................................................................................................ 1-20
Restarting the Monitor/Defibrillator ................................................................................... 1-20
Software License .............................................................................................................. 1-21
Service.............................................................................................................................. 1-21
The ZOLL Serial Number.................................................................................................. 1-22

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Chapter 2 Product Overview
Overview............................................................................................................................. 2-1
Controls and Indicators....................................................................................................... 2-2
The Front Panel .......................................................................................................... 2-3
Display Screen ............................................................................................................ 2-5
Battery Status and AC Power Indicators .................................................................... 2-6
Patient Cables and Connectors .................................................................................. 2-7
External Paddles ....................................................................................................... 2-10
Navigating the Display Screen.......................................................................................... 2-13
Quick Access Keys ................................................................................................... 2-13
Trim Knob ................................................................................................................. 2-15
Display Brightness .................................................................................................... 2-15
Using Code Markers ................................................................................................. 2-16
Replacing a Battery Pack on the ZOLL M2 Unit ............................................................... 2-16
Chapter 3 Monitoring Overview
ZOLL M2 Monitoring Functions........................................................................................... 3-1
ECG ............................................................................................................................ 3-2
Heart Rate .................................................................................................................. 3-2
Selecting the Waveform Display ......................................................................................... 3-2
Inserting, Removing, or Replacing a Waveform Trace ............................................... 3-3
Chapter 4 Trends
Displaying the Patient Trend Data Window ........................................................................ 4-1
Viewing the Patient Trend Data window ..................................................................... 4-2
Printing Trend Information .................................................................................................. 4-3
To Print Incidents ........................................................................................................ 4-3
Chapter 5 Alarms
Alarm Indicator Self-Test..................................................................................................... 5-2
Patient Alarm Display..........................................................................................................5-2
Equipment Alert Display...................................................................................................... 5-3
Visual and Audible Alarm Indicators.................................................................................... 5-4
Responding to Active Patient Alarms.................................................................................. 5-5
Silencing Patient Alarms ............................................................................................. 5-5
Disabling Patient Alarms ............................................................................................. 5-6
Alarm Reminders ........................................................................................................ 5-6
Latching Alarms .......................................................................................................... 5-6
Responding to Equipment Alarms ...................................................................................... 5-7
Setting Alarm Limits ............................................................................................................ 5-7

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9650-000860-01 Rev. C ZOLL M2 Operator’s Guide iii
Chapter 6 Monitoring ECG
ECG Monitoring Setup........................................................................................................ 6-3
Preparing the Patient for Electrode Application .......................................................... 6-3
Applying Electrodes to the Patient .............................................................................. 6-4
Connecting the ECG Cable To the ZOLL M2 Unit ...................................................... 6-6
Selecting Patient Type ................................................................................................ 6-6
Selecting ECG Waveforms for Display ....................................................................... 6-7
Selecting the Waveform Trace Size ........................................................................... 6-8
Diagnostic ECG .......................................................................................................... 6-9
ECG Monitoring and Implanted Pacemakers ............................................................. 6-9
Accessing the ECG Setting Window................................................................................. 6-10
Heart Rate Meter .............................................................................................................. 6-11
Configuring Heart Rate (HR) Meter Alarms ...................................................................... 6-11
Enabling/Disabling HR Alarms and Setting Alarm Limits .......................................... 6-12
Check Patient Alarm ................................................................................................. 6-12
ECG System Messages.................................................................................................... 6-13
Chapter 7 Monitoring SpO2
Cautions.............................................................................................................................. 7-3
SpO2 Setup and Use.......................................................................................................... 7-4
Selecting the SpO2 Sensor ................................................................................................ 7-4
Applying the SpO2 Sensor ................................................................................................. 7-4
Connecting the SpO2 Sensor ............................................................................................. 7-5
Displaying SpO2 Measurements ........................................................................................ 7-5
Adjustable SpO2 Settings................................................................................................... 7-6
Setting the Sensitivity Level ........................................................................................ 7-6
Adjusting the Plethysmogram Display ........................................................................ 7-7
Enabling/Disabling SpO2 Alarms and Setting Alarm Limits ........................................ 7-8
SpO2 System Messages .................................................................................................... 7-9
Chapter 8 Automated External Defibrillator (AED) Operation
Modes of Operation .................................................................................................... 8-1
Patient Type ................................................................................................................ 8-2
Determine Patient Condition Following Medical Protocols ......................................... 8-3
Begin CPR Following Medical Protocols .................................................................... 8-3
Prepare Patient ........................................................................................................... 8-3
Turn on Unit ................................................................................................................ 8-4
Set Patient Type ......................................................................................................... 8-5
1 Analyze .................................................................................................................... 8-5
3 Press SHOCK .......................................................................................................... 8-8
Perform CPR .............................................................................................................. 8-8
CPR Dashboard .......................................................................................................... 8-9
Operating Messages ................................................................................................. 8-10
Audio and Display Messages ................................................................................... 8-10
Switching to Manual Mode Operation............................................................................... 8-12

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Chapter 9 Manual Defibrillation
Emergency Defibrillation Procedure with Paddles.............................................................. 9-1
Modes of Operation .................................................................................................... 9-2
Patient Type ................................................................................................................ 9-2
Determine the Patient’s Condition Following Local Medical Protocols ....................... 9-2
Begin CPR Following Local Medical Protocols ........................................................... 9-2
Prepare Patient ........................................................................................................... 9-2
Turn on Unit ................................................................................................................ 9-3
Set Patient Type ......................................................................................................... 9-3
1 Select Energy Level ................................................................................................. 9-3
2 Charge Defibrillator .................................................................................................. 9-5
3 Deliver Shock ........................................................................................................... 9-7
Emergency Defibrillation Procedure with Hands-Free Therapy Electrodes........................ 9-8
Determine the Patient’s Condition Following Local Medical Protocols ....................... 9-8
Begin CPR Following Medical Protocols .................................................................... 9-8
Prepare Patient ........................................................................................................... 9-8
Turn on Unit ................................................................................................................ 9-9
Set Patient Type ......................................................................................................... 9-9
1 Select Energy Level ............................................................................................... 9-10
2 Charge Defibrillator ................................................................................................ 9-11
3 Deliver Shock ......................................................................................................... 9-12
Synchronized Cardioversion............................................................................................. 9-14
Synchronized Cardioversion of Atrial Fibrillation ...................................................... 9-15
Synchronized Cardioversion Procedure ........................................................................... 9-15
Determine the Patient’s Condition and Provide Care Following Local Medical
Protocols ................................................................................................................ 9-15
Prepare Patient ......................................................................................................... 9-15
Turn on Unit .............................................................................................................. 9-16
Set Patient Type ....................................................................................................... 9-16
1 Select Energy Level ............................................................................................... 9-17
2 Charge Defibrillator ................................................................................................ 9-17
3 Deliver Shock ......................................................................................................... 9-18
Internal Paddles................................................................................................................ 9-18
Verification Prior to Use ............................................................................................ 9-19
Chapter 10 Real CPR Help
CPR User Interface........................................................................................................... 10-2
CPR Dashboard ........................................................................................................ 10-2
CPR Rate Metronome .............................................................................................. 10-3
CPR Compression Voice Prompts (Adult Patients Only) .......................................... 10-3
CPR Compression Bar Graph .................................................................................. 10-4

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Chapter 11 External Pacing
External Pacing................................................................................................................. 11-2
Pacer Modes ............................................................................................................. 11-2
Pacing in Demand Mode .................................................................................................. 11-2
Prepare the Patient ................................................................................................... 11-2
1 Apply ECG Electrodes ........................................................................................... 11-3
2 Apply Hands-Free Therapy Electrodes .................................................................. 11-3
3 Turn Mode Selector to PACER .............................................................................. 11-4
4 Set Pacer Mode ..................................................................................................... 11-4
5 Set Pacer Rate ...................................................................................................... 11-4
6 Start Pacer ............................................................................................................. 11-5
7 Set Pacer Output ................................................................................................... 11-5
8 Determine Capture ................................................................................................ 11-5
9 Determine Optimum Threshold .............................................................................. 11-6
Pacing in Fixed Mode ....................................................................................................... 11-6
Determine Patient Condition and Provide Care Following Local Medical Protocols . 11-6
Prepare the Patient ................................................................................................... 11-6
1 Apply ECG Electrodes ........................................................................................... 11-6
2 Apply Hands-Free Therapy Electrodes .................................................................. 11-7
3 Turn Mode Selector to PACER .............................................................................. 11-7
4 Set Pacer Mode ..................................................................................................... 11-8
5 Set Pacer Rate ...................................................................................................... 11-8
6 Start Pacer ............................................................................................................. 11-8
7 Set Pacer Output ................................................................................................... 11-8
8 Determine Capture ................................................................................................ 11-9
9 Determine Optimum Threshold .............................................................................. 11-9
Pediatric Pacing ...................................................................................................... 11-10
Pacing Messages ........................................................................................................... 11-10
Chapter 12 Incident Data and Reports
Data Storage..................................................................................................................... 12-2
Summary Report............................................................................................................... 12-2
Printing Summary Report ......................................................................................... 12-3
Event Log.......................................................................................................................... 12-4
Snapshots......................................................................................................................... 12-6
Snapshot Types ........................................................................................................ 12-7
Printing Snapshots .................................................................................................. 12-12
Full Disclosure Recording............................................................................................... 12-13
Transferring Full Disclosure Recording Using USB ................................................ 12-13
Transferring Full Disclosure Recording Using WiFi ................................................ 12-15
Deleting a Rescue Incident............................................................................................. 12-16
Setting Up a Wireless Configuration/SFTP Server ......................................................... 12-17
To Set Up A Wireless Configuration ....................................................................... 12-17
To Set Up An SFTP Server .................................................................................... 12-19

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Chapter 13 Maintenance and Troubleshooting
Daily/Shift Check Procedure............................................................................................. 13-2
Inspection ................................................................................................................. 13-2
Defibrillator/Pacing Test .................................................................................................... 13-3
Defibrillator Testing with External Paddles........................................................................ 13-5
SpO2 Functional Check.................................................................................................... 13-6
Recommended Minimum Preventive Maintenance Schedule .......................................... 13-7
Guidelines for Maintaining Peak Battery Performance ..................................................... 13-7
Cleaning instructions ........................................................................................................ 13-8
Cleaning the ZOLL M2 unit ....................................................................................... 13-8
Cleaning SpO2 Sensors ........................................................................................... 13-8
Cleaning Cables and other Accessories ................................................................... 13-8
Cleaning the Print Head ............................................................................................ 13-9
Loading Recorder Paper ........................................................................................... 13-9
Troubleshooting .............................................................................................................. 13-11
Appendix A Specifications
Defibrillator..........................................................................................................................A-2
Display ................................................................................................................................A-2
ECG ....................................................................................................................................A-2
Pulse Oximetry (SpO2).......................................................................................................A-4
Alarms.................................................................................................................................A-5
Recorder .............................................................................................................................A-6
Battery ................................................................................................................................A-7
General ...............................................................................................................................A-7
Pacer ..................................................................................................................................A-8
Chest Compression Monitoring ..........................................................................................A-8
WiFi.....................................................................................................................................A-8
Essential performance ...................................................................................................... A-11
Defibrillation ..............................................................................................................A-11
Transcutaneous Pacing ............................................................................................A-11
ECG Monitoring ........................................................................................................A-11
SpO2 Monitoring .......................................................................................................A-11
CPR Feedback .........................................................................................................A-11
Overload Protection ..................................................................................................A-11
Performance on AC Power .......................................................................................A-11
Performance on Battery Power .................................................................................A-11
Electromagnetic Compatibility (EMC) .......................................................................A-12
ZOLL M2 Rectilinear Biphasic Waveform Characteristics ................................................A-13
Clinical Trial Results for the Biphasic Waveform ..............................................................A-25
Randomized Multicenter Clinical Trial for Defibrillation of Ventricular Fibrillation
(VF) and Ventricular Tachycardia (VT) ...................................................................A-25
Randomized Multi-Center Clinical trial for Cardioversion of Atrial Fibrillation (AF) ...A-26
Electromagnetic Compatibility Guidance and Manufacturer’s Declaration .......................A-28

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Electromagnetic Immunity (IEC 60601-1-2) ..............................................................A-29
Electromagnetic Immunity: Professional Healthcare Facility and Home Healthcare
Environments .........................................................................................................A-30
Electromagnetic Immunity: Professional Healthcare Facility and Home Healthcare
Environments .........................................................................................................A-31
ECG Analysis Algorithm Accuracy ....................................................................................A-32
Clinical Performance Results ....................................................................................A-32
Wireless Output Guidance and Manufacturer’s Declaration.............................................A-34
RF Transmission Emitted (IEC 60601-1-2) ...............................................................A-34
Appendix B Accessories
Appendix C Messages

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viii www.zoll.com 9650-000860-01 Rev. C

9650-000860-01 Rev. C ZOLL M2 Operator’s Guide 1-1
Chapter 1
General Information
Product Description
The ZOLL M2™ unit is an easy-to-use portable monitor/defibrillator that combines
defibrillation and external pacing with the following monitoring capabilities:
•ECG
•Heart Rate
•CPR-related Chest Compressions rate and depth
•Oxygen Saturation of Arterial Hemoglobin (SpO2)
The ZOLL M2 is a rugged, compact and lightweight unit that is designed for all resuscitation
situations and is ideal for ground transport. The ZOLL M2 can be powered by AC mains power
and/or an easily replaceable battery pack that automatically recharges when the ZOLL M2 is
connected to AC mains power. In addition, a ZOLL® SurePower™ Charger Station can be used
to recharge and test the ZOLL M2 battery.
Note: The ZOLL M2 provides ECG monitoring, Real CPR Help®, and can be configured for
manual defibrillation or AED operation.
The product is designed for use in both the hospital and the rugged EMS environments. The
device is a versatile automated external defibrillator with manual capabilities and may be
configured to start it’s Defibrillator mode in Semiautomatic (AED) mode or Manual mode.

Chapter 1 General Information
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When operating in manual defibrillation mode, the device operates as a conventional
defibrillator where the device’s charging and discharging is fully controlled by the operator. In
AED mode, some features of the device are automated and a sophisticated detection algorithm
is used to identify ventricular fibrillation and wide-complex ventricular tachycardia, and to
determine the appropriateness of defibrillator shock delivery. Units may be configured to
automatically analyze the patient's ECG rhythm, charge the defibrillator, and prompt the
operator to “PRESS SHOCK”, depending on local protocols. The unit is switched from AED
mode to Manual mode for ACLS use by pressing the appropriate key on the front panel.
The ZOLL M2 unit assists caregivers during cardiopulmonary resuscitation (CPR) by
evaluating the rate and depth of chest compressions and providing feedback to the rescuer.
The unit has a large colorful LCD display of numerics and waveform data that provides easy
visibility from across the room and at any angle. ECG and SpO2 plethysmographic waveform
traces can be displayed simultaneously, giving easy access to all patient monitoring data at
once.The ZOLL M2 includes a transcutaneous pacemaker consisting of a pulse generator and
ECG sensing circuitry. Pacing supports both demand and fixed rate noninvasive pacing for
adult, pediatric, and neonatal patients.
The ZOLL M2 has a patient data review and collection system that allows for printing, storing
and transferring patient data. The ZOLL M2 unit contains a printer and USB port, which can be
used to print data and transfer it to a PC.
The ZOLL M2 unit can send full disclosure logs to a remote server through an optional wireless
connection. In addition, ZOLL M2 recorded full disclosure cases can be reviewed and printed
using ZOLL RescueNet® Code Review software (sold separately).
Contraindications
Carefully review the Cautions and Warnings contained in this manual before device use.
The AED mode is not indicated for use on patients less than 1 year of age.
How to Use This Manual
The ZOLL M2 Operator's Guide provides information operators need for the safe and effective
use and care of the ZOLL M2 product. It is important that all persons using this device read and
understand all the information contained within.
Please thoroughly read the safety considerations and warnings section.
Procedures for daily checkout and unit care are located in the Chapter 13, "Maintenance and
Troubleshooting".

Operator’s Guide Updates
9650-000860-01 Rev. C ZOLL M2 Operator’s Guide 1-3
Operator’s Guide Updates
An issue or revision date for this manual is shown on the back of the front cover. If more than
three years have elapsed since this date, contact ZOLL Medical Corporation to determine if
additional product information updates are available.
All users should carefully review each manual update to understand its significance and then
file it in its appropriate section within this manual for subsequent reference.
Product documentation is available through the ZOLL website at www.zoll.com. From the
Products menu, choose Product Manuals.
Unpacking
Carefully inspect each container for damage. If the shipping container or cushion material is
damaged, keep it until the contents have been checked for completeness and the instrument has
been checked for mechanical and electrical integrity. If the contents are incomplete, there exists
mechanical damage, or the monitor/defibrillator does not pass its power on self-test, customers
should contact the nearest ZOLL authorized representative. If the shipping container is
damaged, also notify the carrier.
Starting up the ZOLL M2
After unpacking and inspection, the ZOLL M2 unit can be prepared to monitor and treat the
patient.
1. Before starting the ZOLL M2, verify that there is no mechanical damage to the monitor/
defibrillator, and that external cable and accessories are properly connected.
2. Insert the power cord into the rear panel AC power socket. If using battery power, make sure
the battery is fully charged and that a spare fully charged battery is readily available.
3. Turn the Mode Selector to enter the working mode required. When the screen illuminates, the
device starts to self-test: the system beeps, the two visual alarm indicators will light yellow
and red respectively (then extinguish), and the All Tests Passed window displays.
4. Press the Trim Knob to select OK to start monitoring and treating the patient.
Note: Refer to the applicable chapter in this manual for instructions on how to prepare
patient before treatment.

Chapter 1 General Information
1-4 www.zoll.com 9650-000860-01 Rev. C
Symbols Used on the Equipment
Any or all of the following symbols may be used in this manual or on this equipment, or on the
equipment or accessory packaging:
Symbol Description
Dangerous voltage.
General warning: Observe and follow all safety signs.
Fragile, handle with care.
Keep dry.
This end up.
Temperature limitation.
Conformité Européenne Complies with medical device directive 93/42/EEC.
Type BF patient connection (applied part).
Type CF patient connection (applied part).
Defibrillator-proof type BF patient connection (applied part).
Defibrillator-proof type CF patient connection (applied part).

Symbols Used on the Equipment
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Equipotentiality.
Alternating current (ac).
Direct current (dc).
Caution, high voltage.
Protective earth (ground).
Contains lithium. Recycle or dispose of properly.
Keep away from open flame and high heat.
Do not open, disassemble, or intentionally damage.
Do not crush.
Do not discard in trash. Recycle or dispose of properly.
Return to a collection site intended for waste electrical and electronic
equipment (WEEE). Do not dispose of in unsorted trash.
Date of manufacture.
Symbol Description

Chapter 1 General Information
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Use by.
Latex-free.
Do not reuse.
Do not fold.
Not sterile.
Manufacturer.
Authorized representative in the European Community.
Serial Number.
Catalogue number.
Consult instructions for use.
Refer to instruction manual/booklet.
Ingress Protection rating
WiFi
Symbol Description

Symbols Used on the Equipment
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This guide uses the following conventions:
Within text, the names and labels for physical buttons and quick access keys appear in boldface
type (for example, “Press the CHARGE button”).
This guide uses uppercase italics for audible prompts and for text messages displayed on the
screen (for example, LEAD FAULT).
Caution Caution statements alert you to conditions or actions that can result in damage to the unit.
Warning! Warning statements alert you to conditions or actions that can result in personal injury or
death.
Alarm off.
Alarm audio is currently off.
Alarm audio is currently paused.
Performs the following alarm functions when pressed and held for various
time periods:
•Silences patient alarm for preconfigured period of time.
•Silences patient alarm audio permanently.
•Disables patient alarm processing.
•Responds to equipment related alarms.
Implanted pacer markers disabled.
Battery charging status.
Do not use device, cables, or probes in an MRI environment.
No physiological signal is being acquired for the displayed monitoring
parameter or the acquired signal is inadequate for monitoring patient
condition.
Symbol Description

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ZOLL M2 Indications for Use
The ZOLL M2 is intended for use by trained medical personnel who are familiar with patient
monitoring, vital sign assessment, emergency cardiac care, and the use of the ZOLL M2
monitor/defibrillator.
The ZOLL M2 is also intended for use by (or on the order of) physicians at the scene of an
emergency or in a hospital emergency room, intensive care unit, cardiac care unit, or other
similar areas of a hospital. The ZOLL M2 device may be used in any road ambulance. It is also
intended to be used during the transport of patients. The ZOLL M2 will be used primarily on
patients experiencing symptoms of cardiac arrest or in post trauma situations. It may also be
used to monitor patient physiological parameters whose measurement is supported by the
device. The ZOLL M2 unit can be used on neonatal, pediatric and adult patients (as described
in the following table):
Manual Defibrillation
Use of the ZOLL M2 in the manual mode for external and open chest defibrillation is indicated
on victims of cardiac arrest where there is apparent lack of circulation as indicated by:
•Unconsciousness
•Absence of breathing
•Absence of pulse
This product should be used only by qualified medical personnel for converting ventricular
fibrillation and rapid ventricular tachycardia to sinus rhythm or other cardiac rhythms capable
of producing hemodynamically significant heartbeats.
The unit can also be used for synchronized cardioversion of certain atrial or ventricular
arrhythmias. Qualified medical personnel must decide when synchronized cardioversion is
appropriate.
Manual mode can be used with all patient types with appropriate energy settings.
Neonate Children 28 days or less of age if born at
term (37 weeks gestation or more);
otherwise, up to 44 gestational weeks.
Pediatric Individuals between 29 days and 8 years of
age, or weighing less than 55 lbs (25 kg).
Adult Individuals greater than 8 years of age, or
weighing greater than 55 lbs (25kg).

ZOLL M2 Indications for Use
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Semiautomatic Operation (AED)
ZOLL M2 products are designed for use by emergency care personnel who have completed
training and certification requirements applicable to the use of a defibrillator where the device
operator controls delivery of shocks to the patient.
ZOLL M2 products are specifically designed for use in early defibrillation programs where the
delivery of a defibrillator shock during resuscitation involving CPR, transportation, and
definitive care are incorporated into a medically-approved patient care protocol.
Use of the ZOLL M2 in the semiautomatic mode for defibrillation is indicated on victims of
cardiac arrest where there is apparent lack of circulation as indicated by:
• Unconsciousness
• Absence of breathing
• Absence of pulse
Specifications for the ECG rhythm analysis function are provided in the section “ECG Analysis
Algorithm Accuracy” on page A-32.
When the patient is less than 8 years of age or weighs less than 55 lbs. (25 Kg), ZOLL pediatric
defibrillation electrodes should be used. Do not delay therapy to determine patient’s exact age
or weight.
AED mode is not indicated for use on patients less than 1 year of age.
ECG Monitoring
The ZOLL M2 is intended for use to monitor and/or record 2-lead (defibrillation pads/paddles),
3-lead or 5-lead ECG waveforms and heart rate, and to alarm when heart rate is above or below
limits set by the operator. The patient population will range from neonate to adult.
CPR Monitoring
The CPR monitoring function provides visual and audio feedback designed to encourage
rescuers to perform chest compressions at a rate that falls within AHA/ERC recommended
guidelines. Voice and visual prompts encourage a minimum compression depth of at least 2.0
inches (5.0 cm) for adult patients and a compression rate of greater than 100 cpm.
Compression depth and monitoring without audio prompting is provided in pediatric patient
mode. Rescuers must determine the appropriate compression depth for their pediatric patient.
External Transcutaneous Pacing
This product can be used for temporary external cardiac pacing in conscious or unconscious
patients as an alternative to endocardial stimulation.
The purposes of pacing include:
•Resuscitation from standstill or bradycardia of any etiology
•As a standby when standstill or bradycardia might be expected
•Suppression of tachycardia
•Pediatric pacing

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SpO2 Monitoring
The ZOLL M2 SpO2 module is intended for use for continuous noninvasive monitoring of
functional oxygen saturation of arterial hemoglobin (SpO2), pulse rate (PR), and to alarm if
either parameter is outside of the limits set by the user. The pulse oximeter and accessories are
indicated for use on adult and pediatric patients.
ZOLL M2 Product Functions
Defibrillator Function
The ZOLL M2 contains a direct current (dc) defibrillator capable of delivering 200 joules or
more. It may be used in synchronized mode to perform synchronized cardioversion using the
patient’s R-wave as a timing reference. The unit uses paddles; reusable electrodes with
replaceable gel; or disposable, pregelled electrodes for defibrillation.
Defibrillator Output Energy
ZOLL M2 defibrillators can deliver biphasic energy at settings from 1 joule to 200 joules. The
energy delivered through the chest wall, however, is determined by the patient’s transthoracic
impedance. An adequate amount of electrolyte gel must be applied to the paddles and a force of
10 to 12 kilograms (22 to 26.4 pounds) must be applied to each paddle in order to minimize this
impedance. If hands-free therapy electrodes are used, make sure that they are properly applied.
(Refer to the instructions on the electrode package.)
External Pacemaker
ZOLL M2 defibrillators include a transcutaneous pacemaker consisting of a pulse generator
and ECG-sensing circuitry. Noninvasive transcutaneous pacing (NTP) is an established and
proven technique. This therapy is easily and rapidly applied in both emergency and
nonemergency situations when temporary cardiac stimulation is indicated.
The output current of the pacemaker is continuously variable from 8 to 140 mA (the pacing is
paused when the output current is 0 mA). The rate is continuously variable from 30 to 180
pulses per minute (ppm), by increments of 2 ppm.
The pacing output pulse is delivered to the heart via ZOLL hands-free defibrillation/pacing
electrodes placed on the patient’s back and the precordium.
Proper operation of the device, together with correct electrode placement, is critical to
obtaining optimal results.