ZOLL M Series User manual

Non-Invasive
Blood
Pressure
9650-0214-01 Rev. D

The issue date or revision level for this operation guide is shown on the front cover.
ZOLL and M Series are trademarks of ZOLL Medical Corporation.
2002 by ZOLL Medical Corporation. All rights reserved.

Table of Contents
ZOLL M Series Non-Invasive Blood Pressure iii
PREFACE ........................................................................................................................................................................V
How Do I Use This Manual?..........................................................................................................................v
Safety Summary..............................................................................................................................................v
General NIBP Safety........................................................................................................................v
Cuff and Hose Safety ......................................................................................................................vi
Indications for Use.........................................................................................................................................vi
Contraindications for Use..............................................................................................................................vi
SunTech CE Contact......................................................................................................................................vi
INTRODUCTION ..............................................................................................................................................................1
What Can I Do With the NIBP Option?.........................................................................................................1
How Do I Use the NIBP Option?...................................................................................................................1
How Does the NIBP Option Work? ...............................................................................................................2
How Do I Read the Display?..........................................................................................................................3
PREPARING TO TAKE MEASUREMENTS .........................................................................................................................5
Setting Up the Hose and the Cuff...................................................................................................................5
Selecting the Cuff.............................................................................................................................5
Connecting the Hose ........................................................................................................................5
Applying the Cuff to the Patient ......................................................................................................6
Accessing NIBP Features...............................................................................................................................6
Displaying the NIBP Menu ............................................................................................................................7
Displaying the NIBP menu ..............................................................................................................7
Selecting Cuff Inflation Settings ....................................................................................................................8
Turning Off Auto Adjust..................................................................................................................8
Setting Cuff Inflation Pressure.........................................................................................................9
Setting Alarms................................................................................................................................................9
Setting Alarm Limits......................................................................................................................10
Enabling, Disabling and Suspending Alarms.................................................................................10
Triggering NIBP measurements.....................................................................................................10
TAKING MEASUREMENTS ............................................................................................................................................10
Taking a Single Measurement......................................................................................................................12
Taking STAT Measurements........................................................................................................................12
Starting STAT Measurements........................................................................................................13
Aborting STAT Measurements......................................................................................................13
Taking Automatic Measurements.................................................................................................................13
Setting the Measurement Interval .................................................................................................. 13
Starting Automatic Measurements.................................................................................................14
Taking an Additional Measurement...............................................................................................14
Aborting a Single Measurement.....................................................................................................14
Stopping All Automatic Measurements.........................................................................................15
Aborting Measurements................................................................................................................................15
PRINTING DATA...........................................................................................................................................................16
MAINTAINING THE NIBP OPTION ...............................................................................................................................16
Performing the Daily Checkout Procedure...................................................................................................16
Cleaning the Hose.........................................................................................................................................17
Cleaning Non-Disposable Cuffs...................................................................................................................17
SPECIFICATIONS...........................................................................................................................................................17
SOFTWARE LICENSE ....................................................................................................................................................19
ORDERING ACCESSORIES.............................................................................................................................................19
TROUBLESHOOTING .....................................................................................................................................................21

iv ZOLL M Series Non-Invasive Blood Pressure
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ZOLL M Series Non-Invasive Blood Pressure v
Preface
How Do I Use This Manual?
This manual insert describes the set up and use of the M Series Non-Invasive Blood Pressure option.
If you already know how to use the M Series, start by reading the Safety Summary, Indications for Use
and Introduction sections of this insert. Familiarize yourself with all the procedures in this insert
before you use the NIBP option. Consult the Troubleshooting section if the M Series fails to operate
as expected.
If you do not know how to use the M Series, see the M Series Operator’s Guide and the relevant
inserts. Thoroughly read the safety considerations and warnings sections in both the M Series
Operator’s Guide and the relevant inserts before operating your M Series product.
Place this insert in the three-ring binder along with the M Series Operator’s Guide and all other option
inserts.
Safety Summary
The following is a short summary of warnings, cautions and other safety information related to the
NIBP option. Additional warnings and cautions are in the text of this insert. Read this section
thoroughly before operating the NIBP Option.
General NIBP
Safety • Read the M Series Operator’s Guide and this manual insert before use.
• The M Series NIBP option is to be operated by qualified personnel only.
• Consult a physician for the proper interpretation of pressure measurements.
• Do not use the NIBP option on newborns or infants whose upper arm circumference is less than 13
cm.
• Do not use on patients known to be susceptible to bruising.
• Use caution when using on elderly hypertensive patients, as such patients may be more susceptible
to bruising.
• Do not use in the presence of oxygen-rich atmospheres, flammable anesthetics or other flammable
agents (such as gasoline). Do not use near the site of a gasoline spill. Explosion may result.
• Route patient cabling and hoses carefully to avoid patient entanglement, strangulation or
compression of hose.
• Do not select a cuff inflation pressure that exceeds the patient’s expected systolic pressure by more
than 30-40 mmHg (4.0-5.3 kPa). The factory-installed default cuff inflation pressure is 160 mmHg
(21.3 kPa).
• Do not attach the cuff to a limb being used for IV infusion or SpO2monitoring. Cuff inflation might
block the infusion, causing harm to the patient or inaccurate measurements.
• Keep patients as still as possible during measurement. Patient movement or vibrations from outside
sources, particularly moving vehicles, can degrade the measurement accuracy.
• Do not touch the bed, patient, or any equipment connected to the patient during defibrillation. A
severe shock to the operator can result.
• Do not allow exposed portions of the patient’s body to come in contact with metal objects, such as
a bed frame during defibrillation. Unwanted electrical pathways can result.

vi ZOLL M Series Non-Invasive Blood Pressure
• Check patient regularly for signs of skin irritation or impaired circulation in the monitored limb.
• If an alarm occurs while the alarms are suspended, audio alarms do not sound, only visual alarms
display.
• If the accuracy of measurements is suspect, first check the patient's vital signs by alternate means.
Then check the cuff, hose and M Series NIBP option for proper functioning.
• Do not immerse the M Series device, batteries, patient cables, sensors or airway adapters in water,
solvents, or cleaning solutions.
• Do not sterilize.
• Connect the ECG-out jack and modem (if available) only to other equipment with galvanically
isolated circuits.
• The cuff, hose and fitting are defibrillator proof. Using the NIBP option introduces no risk for shock
due to defibrillation. The cuff and hose are non-conductive. Using the NIBP option introduces no
risk for burns due to electro-surgery.
Cuff and Hose
Safety • Only use cuffs, hoses and connectors supplied or specified by ZOLL.
• Ensure that the hose is not kinked or obstructed before taking measurement.
• Do not use damaged cuffs, hoses or connectors.
• Improper cuff selection or placement can cause inaccurate measurements or patient injury.
• Position the cuff so it is level with the heart during measurement.
• Do not place the cuff on a limb with an SpO2sensor or an infusion line.
• Do not repeat NIBP measurements (particularly STAT measurements) at intervals less than 3-5
minutes over an extended period of time. Rapidly repeating measurement can impair circulation in
the monitored limb.
• Do not sterilize or immerse the cuffs or hoses.
Indications for Use
The ZOLL M Series NIBP option is indicated for the noninvasive measurement of arterial blood
pressure for resting patients in critical care and transport. The M Series NIBP option is designed to
measure blood pressure for adult and pediatric patients only.
Contraindications for Use
Use of the ZOLL M Series NIBP option is not indicated for use on neonatal patients or infants whose
upper arm circumference is less than 13 cm.
SunTech CE Contact
All cuff, hose andNIBP questions with regards to the Declaration of Conformity with European Union
Directives should be directed to the authorized representative for SunTech:
SunTech Medical Instruments Ltd.
Oakfield Industrial Estate
Stantom Harcourt Road
Eynsham, Witney
OX8 ITS
UK

ZOLL M Series Non-Invasive Blood Pressure 1
Introduction
What Can I Do With the NIBP Option?
With the NIBP option you can do the following:
• Take a single blood pressure measurement.
• Take a STAT measurement - as many measurements (up to ten) as possible within five minutes.
• Take repeated measurements at user-programmable intervals.
• Immediately abort any measurement in progress by pressing one button.
• Set the cuff inflation pressure to adjust automatically based on the previously measured systolic
value.
• Display systolic, diastolic and mean blood pressure on the screen.
• Configure alarms to go off when the unit detects blood pressure values above or below user-
programmable limits.
• Perform any of the above operations without leaving Monitor, Pacer or Defib mode.
How Do I Use the NIBP Option?
To take safe and accurate blood pressure measurements using the M Series NIBP option, you must do
all of the following:
1. Select the proper sized cuff.
2. Connect the hose to the M Series and to the cuff.
3. Apply the cuff to the patient.
4. Display the NIBP menu.
5. Set the cuff inflation pressure (if the current setting is not appropriate).
6. Configure alarms (if the current setting is not appropriate).
7. Take blood pressure measurement(s).
8. Read the display.
NOTE To facilitate quick reactions in emergency situations, press the NIBP button instead of completing
steps 4 - 7.
Each step corresponds to a section in this chapter. Read each section carefully before you use the
M Series NIBP option.
WARNING Do not use the NIBP option without proper training. Setting initial inflation pressure too high can
result in serious injury to the patient. Patient movement, very low pulse volume or vibration from
outside sources can influence the accuracy of blood pressure measurements.

2 ZOLL M Series Non-Invasive Blood Pressure
How Does the NIBP Option Work?
The NIBP option uses the oscillometric method to measure arterial blood pressure and consists of the
following parts:
• Blood pressure cuff.
•Hose.
• Pump.
• Pressure sensor and signal processing electronics/software (inside the M Series).
When taking a measurement, the M Series performs the following cycle:
1. Cuff inflates to preset pressure, cutting off the flow of blood through the arteries in the monitored
limb.
2. Cuff deflates incrementally.
3. When the cuff pressure drops far enough, the blood flow in the patient’s arteries resumes.
4. Pressure oscillations caused by the restricted blood flow travel from the cuff, through the hose, and
to the M Series.
5. A sensor inside the M Series measures the pressure oscillations and calculates the corresponding
systolic, diastolic, mean blood pressure and pulse rate values.
6. Blood pressure values display on the screen.
This cycle takes approximately 30 seconds. If set to do so, the M Series repeats the cycle at a user-
selected interval.
If the sensor cannot detect systolic pressure, the M Series immediately increases the cuff inflation
pressure and completes the measurement. If the M Series finds a fault, it displays a corresponding
message on the screen. If after 180 seconds the M Series has not been able to determine systolic,
diastolic or mean pressure, it aborts the measurement and deflates the cuff.
When taking automatic interval measurements, the M Series does not start a new measurement unless
30 seconds have elapsed since the end of the previously completed measurement cycle.

ZOLL M Series Non-Invasive Blood Pressure 3
How Do I Read the Display?
After each measurement, the NIBP display area displays the following blood pressure values:
• Systolic.
• Diastolic.
• Mean.
To access most NIBP features you must press a softkey with the proper softkey label. To facilitate
quick reaction in emergency situations, you can control some NIBP features by pressing the NIBP
button (see the following figure):
Figure 1: M Series Front Panel with NIBP Option
NOTE Depending on the options included in your M Series, your front panel and display may differ slightly
from the illustrations in this insert.
NIBP Display Area
Softkey Labels
Softkeys
NIBP Button NIBP Connector

4 ZOLL M Series Non-Invasive Blood Pressure
The NIBP display area consists of:
• Symbols that represent the status of blood pressure measurements.
• Numbers that represent the measurement values (see Figure 2 and Table 1):
Figure 2: NIBP Display Area
The movement of the Cuff Inflation Status Bar reflects the cuff inflationpressure. As the cuff inflates,
the Cuff Inflation Status Bar lengthens. As the cuff deflates, the Cuff Inflation Status Bar shortens.
When the cuff is fully deflated, the Cuff Inflation Status Bar is not displayed.
The Artifact indicator flashes when the M Series unit detects artifact in the signal. Under such
circumstances, perform additional blood pressure measurements. If you repeatedly obtain artifact, use
alternate techniques to obtain blood pressure prior to taking clinical action.
The M Series default unit of measure is millimeters of mercury (mmHg), but you can configure the M
Series to display kilopascals (kPa). See the M Series Configuration Guide for instructions on how to
configure alternate units of measure.
Table 1: NIBP Display Symbols
Display Symbols: Status:
Not taking any NIBP measurements.
Taking a single measurement
alternating with
Taking STAT measurement.
alternating with
Taking Auto measurement.
alternating with
Between Auto measurements.
Alarms enabled.
Alarms disabled
Cuff Inflation
Status Bar
Alarm Status Diastolic
BP Value
Systolic
BP Value
Mean BP
Value
Artifact
Indicator

ZOLL M Series Non-Invasive Blood Pressure 5
Preparing to Take
Measurements
Setting Up the Hose and the Cuff
Before taking NIBP measurements, select the appropriately sized cuff, connect the hose to the
M Series unit and to the cuff, and apply the cuff to the patient. Additional cuffs and hoses can be
ordered from ZOLL Medical Corporation. See ”Ordering Accessories” on page 19 for part numbers.
Selecting the
Cuff The NIBP option comes with a cuff that inflates to cut off the patient’s blood flow and then deflates
slowly to allow the blood flow to gradually resume. To take accurate measurements, you must use the
proper sized cuff. Bladder length should be at least 80 percent of the limb circumference, while the
cuff width should be equal to 40 percent of the limb circumference.
To select the cuff:
•Select the appropriate size for your patient from the following table:
You can now connect the hose to the M Series unit and the cuff.
Connecting
the Hose The NIBP option comes with a hose that has a plastic connector on one end and a metal connector on
the other end. Attach this hose to both the M Series unit and the cuff before taking a measurement.
The cuff has its own short length of hose with a connector on the end. This connector fits into the end
of the hose that is not connected to the M Series.
To connect the hose:
1. Insert the metal connector into the NIBP connector at the front of the M Series unit and push the
connector until it snaps into place.
2. Insert the plastic connector into the cuff connector and twist the connectors until they lock into
place.
You can now apply the cuff to the patient.
Table 2: Cuff Selection
Limb Circumference: Cuff:
34.3 to 48.2 cm Large Adult
25.4 to 42.0 cm Adult Plus
25.4 to 34.3 cm Adult
21.1 to 26.6 cm Small Adult
16.0 to 21.8 cm Pediatric

6 ZOLL M Series Non-Invasive Blood Pressure
Applying the
Cuff to the
Patient
Using a cuff that is too small or is loosely applied results in values higher than the patient’s actual
blood pressure. Using a cuff that is too large results in values lower than the patient’s actual blood
pressure.
To apply the cuff to the patient:
1. Ensure the patient is sitting or lying down with the limb relaxed, extended and placed on a smooth
surface for support.
2. Place the cuff 2 to 5 cm above the elbow crease or 5 to 10 cm above the knee crease.
CAUTION Do not place the NIBP cuff on the same arm/leg as an SpO2sensor. Inflation of the cuff will cause the
SpO2monitor to read incorrectly.
CAUTION Ensure that the cuff is at the same level as the heart. If the cuff is located below the patient’s heart, the
blood pressure measurements display false high readings. If the cuff is located above the patient’s
heart, the blood pressure measurements display false low readings.
3. Adjust the cuff so that the artery marker on the cuff is over the artery, pointing to the hand or foot.
4. Check that the cuff ends between the Range lines marked on the cuff. If they do not line up, use a
different sized cuff.
5. Wrap the deflated cuff snugly around the limb without impeding blood flow.
6. Ensure that the hose is routed to avoid kinking or compression.
You can now access the NIBP features.
Accessing NIBP Features
Unless you are sure that the NIBP cuff inflation and alarm settings are appropriate for the patient,
display the NIBP menu before you take a blood pressure measurement. When you first turn on the
M Series, the NIBP settings are at their default settings.
While the factory-installed default settings are appropriate for most patients, do not assume the
settings are at their default. NIBP settings may not be at their factory-installed defaults because a
previous user may have:
• Changed the settings (if you did not turn on the M Series).
• Reconfigured the default settings.
Use the default settings unless they are clearly inappropriate for the patient. Any changes to these
settings remain in effect until either the settings are changed or 10 seconds after the M Series is turned
off. If you have not received training on setting NIBP features, do not use the NIBP option.
To facilitate quick reaction during emergency situations, you can directly access many NIBP features
without displaying the NIBP menu (see the following table).
WARNING Do not start NIBP measurements unless you are sure that the cuff inflation and alarm settings are
appropriate for the patient. Incorrect settings can result in patient injury or inaccurate measurements.

ZOLL M Series Non-Invasive Blood Pressure 7
Displaying the NIBP Menu
Unless it is an emergency situation where quick reaction is essential, you should always check that the
cuff inflation and alarm settings are set properly before taking a measurement. You can access all
NIBP features through the NIBP menu (see Figure 1: on page 3). You can display the NIBP menu
without leaving Monitor, Defib or Pacer mode. AEDs must be in manual override to display the NIBP
menu.
Displaying the
NIBP menu To display the NIBP menu:
1. Press the Param softkey. If the Param softkey label is not displayed, press the Returnsoftkey until
“Param” displays.
The M Series displays the Parameter menu (see the following figure):
Figure 3: Parameter Menu
2. Press the Select softkey until “NIBP” highlights.
3. Press the Enter softkey.
The M Series displays the NIBP menu (see the following figure):
Figure 4: NIBP Menu
Table 3: Accessing NIBP Features
Task: Action:
Taking a single measurement. Press the NIBP button.
Taking STAT measurements. Press and hold the NIBP button for two seconds.
Taking automatic measurements. See ”Displaying the NIBP Menu” on page 7.
Aborting measurement in progress. Press the NIBP button.
Changing NIBP settings. See ”Displaying the NIBP Menu” on page 7.

8 ZOLL M Series Non-Invasive Blood Pressure
NOTE The following procedures assume that you are already in the NIBP menu.
Selecting Cuff Inflation Settings
Before taking a measurement, ensure that the cuff inflation settings are appropriate for the patient. To
measure a patient’s blood pressure, the cuff must begin the measurement cycle by inflating to a
pressure higher than the patient’s systolic blood pressure. This value is called the cuff inflation
pressure. During a NIBP measurement, the M Series may increase the cuff inflation pressure over the
initial value to take a systolic reading.
By default, the cuff inflation pressure for the first measurement is set to 160 mmHg (21.3 kPa). the M
Series automatically adjusts the cuff inflation pressure for all subsequent measurements to 30 mmHg
(4.0 kPa) greater than the systolic value of the previous measurement. This default setting is called
Auto Adjust On.
For example: for the first measurement the cuff inflates to 160 mmHg and the unit obtains a systolic
reading of 110 mmHg. For the next measurement, the cuff inflates to 140 mmHg (i.e., 110 plus 30
equals 140).
Use the default settings unless they are clearly inappropriate. Any changes to these settings remain in
effect until either the settings are changed or 10 seconds after the M Series is turned off (returning the
settings to their default).
As a safety feature, the cuff can never be inflated to more than 300 mmHg (40.0 kPa).
Turning Off
Auto Adjust You should turn off the Auto Adjust feature in situations where the M Series might inflate the cuff to
levels that can cause discomfort or harm to the patient. For example:
• Patient is being transported over a very bumpy road.
• Patient is moving the monitored arm.
• Patient is a small child.
When you turn the Auto Adjust feature off, the M Series repeats the same cuff inflation pressure for
every measurement. Because this method does not readjust to the patient’s previously measured blood
pressure, do not use fixed cuff inflation pressures unless you have received the proper training.
To turn off Auto Adjust:
1. Press the CuffInflationsoftkey. If the Cuff Inflation softkey label is not displayed, see ”Displaying
the NIBP Menu” on page 7.
The M Series displays the Cuff Inflation menu (see the following figure):
Figure 5: Cuff Inflation Menu
2. Press the Next softkey until “Auto Adjust” highlights.
3. Press the Inc softkey until “OFF” displays.
4. Press the Return softkey to return to NIBP menu.
The M Series repeats the selected cuff inflation pressure for every measurement.

ZOLL M Series Non-Invasive Blood Pressure 9
Setting Cuff
Inflation
Pressure
Before taking a measurement, check that the cuff inflation pressure is appropriate for the patient. The
cuff inflation pressure options are (in mmHg): 120, 140, 160, 180, 200, 220, 240, 260, and (in kPa)
16.0, 18.7, 21.3, 24.0, 26.7, 29.3, 32.0, 34.7. The default cuff inflation pressure is set to 160 mmHg
(21.3 kPa). See the M Series Configuration Guide for instructions on how to reconfigure the cuff
inflation pressure default setting.
If the Auto Adjust feature is set to “OFF”, the selected cuff inflation pressure is used for all
measurements. If the Auto Adjust feature is set to “ON”, the selected cuff inflation pressure is used
for only the first measurement. After the first measurement, the cuff inflation pressure automatically
adjusts to 30 mmHg (4.0 kPa) greater than the systolic value of the previous measurement.
WARNING Do not set cuff inflation pressure too high, particularly for pediatric or frail patients. Serious injury
can result.
To set the cuff inflation pressure:
1. Pressthe CuffInflationsoftkey. If the Cuff Inflation softkey label is not displayed, see ”Displaying
the NIBP Menu” on page 7.
2. Press the Next softkey if “Inflation Pressure” is not highlighted.
3. Press the Inc or the Dec softkey to select cuff inflation pressure.
4. Press the Return softkey to return to NIBP menu.
The cuff inflation pressure is set.
Setting Alarms
Before taking a measurement, ensure that all the NIBP alarms settings are appropriate for the
situation. See the M Series Operator’s Guide for instructions on setting alarms. When an NIBP or
heart rate alarm is triggered, the unit automatically initiates a single blood pressure measurement. See
the M Series Configuration Guide for instructions on how to enable/disable this automatic
measurement.
The M Series NIBP option includes blood pressure alarms for the following measurements:
When the M Series is turned on, all alarm functions are disabled and the alarm limits are set to their
default values. Any changes to these settings remain in effect until either the settings are changed or
10 seconds after the M Series is turned off.
Table 4: Alarm Limit Settings and Defaults
Alarm Limit: Default Setting: Range (increments of 5):
High Systolic 160 mmHg; 21.3 kPa 80-260 mmHg; 10.7-34.7 kPa
Low Systolic 90 mmHg; 12.0 kPa 40-140 mmHg; 5.3-18.7 kPa
High Diastolic 110 mmHg; 14.7 kPa 50-200 mmHg; 6.7-26.7 kPa
Low Diastolic 50 mmHg; 6.7 kPa 25-100 mmHg; 3.3-13.3 kPa
High Mean 130 mmHg; 17.3 kPa 60-220 mmHg; 8.0-29.3 kPa
Low Mean 60 mmHg; 8.0 kPa 30-120 mmHg; 4.0-16.0 kPa

10 ZOLL M Series Non-Invasive Blood Pressure
Setting Alarm
Limits You can change all the alarm limits using standard M Series procedures. See the M Series Operator’s
Guide for instructions on setting alarm limits.
You can set the alarm limits using the Auto function, or you can choose your own limits (see Table
4: on page 9). The Auto function sets the high limit to 30 mmHg (4.0 kPa) above and the low limit to
20 mmHg (2.7 kPa) below the last measurement.
Enabling,
Disabling and
Suspending
Alarms
You can enable, disable and suspend all NIBP alarms using standard M Series procedures. See the
M Series Operator’s Guide for instructions on enabling, disabling, and suspending alarms.
Changing the status of one NIBP alarm automatically sets all the other NIBP alarms to the same status.
For example, if you enable the systolic alarm, all other NIBP alarms are automatically enabled. Or if
you disable the diastolic alarm, all other NIBP alarms are automatically disabled. Enabling, disabling
or suspending NIBP alarms does not affect the status of other M Series alarms.
Suspending an NIBP alarm temporarily disables the audio alarm until after the completion of the next
measurement. All visual alarms remain active.
Triggering
NIBP
measurements
You can configure the M Series unit to take a single NIBP measurement after the Heart Rate alarm is
triggered and/or the NIBP alarm is triggered. See the M Series Configuration Guide for further details.
Taking Measurements
With the NIBP option you can take:
• A single measurement.
• A STAT measurement - as many measurements (up to ten) as possible within five minutes.
• Automatic measurements at user-set intervals.
Each type of measurement corresponds to a section below. You can take any type of measurement
whether you are in Monitor, Defib or Pacer mode unless the:
• Defibrillator is charged or charging.
• Previous measurement has been within 30 seconds in automatic interval measurement mode.
WARNING Do not start NIBP measurements unless you are sure that the cuff inflation and alarms settings are
appropriate for the patient. Incorrect settings can result in patient injury or inappropriate alarms.
To immediately abort any measurement in progress and deflate the cuff, press the NIBP button. As a
safety feature, the M Series does not take measurements within 30 seconds of another completed
measurement when in automatic interval measurement mode.
If the M Series finds a fault, a message displays on the screen. See ”Troubleshooting” on page 21 for
a list of NIBP display messages and their corresponding corrective action.
If the M Series unit cannot detect the systolic blood pressure value, it immediately increases the cuff
inflation pressure by 30 mmHg (4.0 kPa) and completes the measurement. If after 180 seconds the
M Series has not been able to determine all three blood pressure values or find a fault, it aborts the
measurement cycle and deflates the cuff.

ZOLL M Series Non-Invasive Blood Pressure 11
WARNING If the M Series unit takes a measurement but indicates the presence of artifact in the signal (denoted
by “*” in the NIBP Display area), the measurement may not be accurate. Under such circumstances,
perform additional blood pressure measurements. If you repeatedly obtain artifact, use alternate
techniques to obtain blood pressure prior to taking clinical action.
As a safety feature, the cuff can never be inflated to more than 300 mmHg (40 kPa). Blood pressure
measurements abort and the cuff deflates when the defibrillator begins charging.
When reading the blood pressure values on the display, keep in mind that the following conditions can
influence NIBP measurements:
• Position of the patient.
• Position of the cuff relative to the patient’s heart.
• Physical condition of the patient.
• Patient limb movements.
• Convulsions or tremors.
• Very low pulse volumes.
• Premature ventricular beats.
• Vibrations in the cuff caused by moving vehicles.
• Improper cuff size or application.

12 ZOLL M Series Non-Invasive Blood Pressure
Taking a Single Measurement
You can take a single measurement at any time by pressing the NIBP button, unless the M Series is
charged or charging.
CAUTION Make sure that no measurement is being taken when you start a new measurement. If you press the
NIBP button while the M Series is taking a measurement, the measurement aborts immediately and
the cuff deflates.
To take a single measurement:
•Press the NIBP button on the M Series front panel (see the following figure):
Figure 6: NIBP button
The M Series takes one blood pressure measurement.
Taking STAT Measurements
You can take a STAT measurement, which consists of the unit taking as many blood pressure
measurements (up to ten) as possible in five minutes. When the M Series finishes taking a
measurement and the cuff deflates, it immediately starts another measurement. Whenever practical,
allow several minutes between STAT measurement sequences to restore full circulation to the
monitored limb.
WARNING Repeated use of STAT measurements on the same patient over a short time interval can affect blood
pressure readings, limit circulation to the limb, and cause injury to the patient.
You cannot set the M Series to take STAT measurements while the defibrillator is charged or charging.
Charging the defibrillator aborts all STAT measurements and deflates the cuff.
NIBP Button

ZOLL M Series Non-Invasive Blood Pressure 13
Starting STAT
Measurements To start STAT measurements, either:
•Press the NIBP button and hold for two seconds, or
•Press the NIBP Stat softkey. If the NIBP Stat softkey label is not displayed, see ”Displaying the
NIBP Menu” on page 7.
The M Series takes as many measurements as possible in 5 minutes. If the M Series is configured to
automatically generate strips, it will print a history of these STAT measurements at the end of the
five-minute period.
AbortingSTAT
Measurements You can abort STAT measurements at any time. Doing so terminates the present measurement and all
upcoming measurements.
To abort STAT measurements, either:
•Press the NIBP button, or
•Press the NIBP Stat softkey. If the NIBP Stat softkey label is not displayed, see ”Displaying the
NIBP Menu” on page 7.
The M Series immediately aborts all measurements, and the cuff deflates.
Taking Automatic Measurements
You can set the M Series to automatically take a series of measurements at selected intervals. For
example, if you set the M Series to take an automatic measurement with an interval of 15 minutes, it
will immediately take a measurement, wait 15 minutes, take another measurement, wait another 15
minutes, etc.
The M Series continues taking automatic measurements until you press the NIBP Auto softkey, or the
unit is turned off for more than 10 seconds. If the M Series is turned off for less than 10 seconds, it
resumes automatic measurements as scheduled. You can take an additional measurement between
automatic measurements, by pressing the NIBP button.
If the defibrillator is charged or charging when the M Series is about to take an automatic
measurement, it aborts the blood pressure measurement. All subsequent automatic measurements take
place at their scheduled time.
To take automatic measurements at set intervals, do the following:
1. Set the measurement interval (if not set to desired value).
2. Start automatic measurements.
Setting the
Measurement
Interval
Before setting the M Series to take automatic measurements, ensure that the measurement interval is
properly set. The measurement interval is the time period between when one measurement starts and
the next measurement starts. The measurement interval options (in minutes) are: 2.5, 3, 4, 5, 6, 7, 8,
9, 10, 15, 20, 30, 45, 60, 90, and 120.
When you turn on the M Series, the measurement interval is set to the default value. The factory-
installed default measurement interval is 30 minutes, but you can configure the M Series to use a
different default. See the M Series Configuration Guide for instructions on how to reconfigure the
measurement interval.

14 ZOLL M Series Non-Invasive Blood Pressure
To set measurements intervals:
1. Press the Auto Interval softkey. If the Auto Interval softkey label is not displayed, see ”Displaying
the NIBP Menu” on page 7.
The Auto Interval menu displays (see the following figure):
Figure 7: Auto Interval Menu
2. Press the Dec or the Inc softkey to select measurement interval.
3. Press the Return softkey to return to NIBP menu.
The measurement interval sets and remains until 10 seconds after the M Series is turned off or the
value is reset.
Starting
Automatic
Measurements
When you start automatic measurements, the M Series takes an immediate measurement and repeats
subsequent measurements at the selected interval.
To start automatic measurements:
•Press the NIBP Auto softkey. If the NIBP Auto softkey label is not displayed, see ”Displaying the
NIBP Menu” on page 7.
The M Series takes measurement. After each measurement the M Series repeats subsequent
measurements at the selected interval.
Taking an
Additional
Measurement
You can take an immediate measurement between the automatic measurements unless the:
• M Series is currently taking a measurement, or:
• Defibrillator is charged or charging.
If you press the NIBP button during a measurement, the present measurement aborts. All subsequent
measurements continue at the selected interval.
If you press the NIBP button at any other time (unless the defibrillator is charged or charging), the
M Series takes an extra measurement without altering the timing of the other automatic measurements.
The M Series does not start a new automatic measurement unless 30 seconds have elapsed since the
end of the previous completed measurement cycle. In this case, the M Series omits the scheduled
measurement.
To take an additional measurement:
•Press the NIBP button.
The M Series takes an extra measurement without altering the timing of the other measurements.
Aborting a
Single
Measurement
When the M Series is taking automatic measurements, you can stop a single blood pressure
measurement. The M Series continues taking all subsequent measurements at the selected intervals. If
you press the NIBP button while the M Series is not taking a measurement, it takes a new
measurement.
To stop a single measurement:
•Press the NIBP button.