Welch Allyn Schiller SP-2 User manual

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SP-2 User Guide
Art. No. 71022-0000 Welch Allyn Schiller ©2000
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SP-2 Hand-Held Spirometer
Section 1
Introduction 2
Procedure Overview 4
Main Menu 5
Entering Patient Data 6
Selecting the Test 9
Taking a Test 12
Forced Vital Capacity (FVC) Test 12
Slow Vital Capacity (SVC) Test 13
MVV Test 13
Screen Information 14
Curves 14
Tabular 15
Post-Medication Tests 16
Memory 17
Menu 19
Displaying Test Data From a Stored Patient 20
Obtaining a Printout 21
Spiro Settings (User Identification) 22
Spiro Settings (Printout) 23
Spiro Settings (Device) 24
Normals 25
Changing the Mouthpiece 26
Calibration 28
Calibration Procedure 29
Explanation of Measured Values 32
Care & Maintenance 34
Self-test 34
Lifed Items 34
Cleaning the Unit 35
Batteries 35
Spirometry Tips - How To Do It and Common
Pitfalls and Problems 36
How to Do It 36
FVC 37
FEV1 38
Patient-Related Problems 39
Cardio Menu
Service Manual

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Introduction
The SP-2 Hand-Held Spirometry Unit features three
pulmonary function testing modes for the
measurement of inspiratory and expiratory values.
The large LCD screen instantly show pulmonary
test results and provides a clear and comprehensive
result analysis in a number of different formats. All
tests and settings are initiated via an easy to use
interface.
The sensor mouthpiece is a disposable, single
patient sensor/filter assembly eliminating the need
to clean the sensor after each use.
All functions and settings are selected via menus
displayed on the LCD with direct test function
menu options for measuring the following:
nFVC Forced Vital Capacity
nSVC Slow Vital Capacity
nMVV Maximum Voluntary Ventilation
(Option)
1. Battery Compartment
Two, 1.5V non rechargeable AA batteries
2. 12 Alpha numeric keys
For text / numerical input e.g. patient data, calibration data etc.
3. Three Direct Function keys:
Print / Send. This key initiates transmission over the infrared interface
to a compatible printer using the standard data association protocol.
LCD Backlight Key - The middle key is the ON/OFF control for the
LCD backlight. The backlight is automatically switched off after
approximately 10 seconds.
The START/STOP (and ON/OFF) key has three functions:
nSwitches the unit on.
nWhen the unit is switched on and in test mode, this key starts /
stops a measurement.
nWhen the unit is switched on and not in test mode, this key
switches the unit off (press for 2-3 seconds).
4. Four (menu navigation/selection) Function keys:
LEFT / RIGHT keys - The functions of these keys depends on the
menu displayed and is shown in the bottom line of the LCD line. In
general however, the left softkey selects the functions and the right key
acts in a similar way to the 'enter' key in a PC. See following pages.
The UP and DOWN keys move the cursor in the menu fields to
highlight the menu options. These two keys can also act as extra
function keys - in this case the function is shown in the bottom line of
the LCD line.
5. LCD
6. Infrared Data Interface (not seen)
7. Disposable Mouthpiece

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SP-2 User Guide
Art. No. 71022-0000 Welch Allyn Schiller ©2000
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6432 5 7
1

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Battery Indicator - Displayed when
battery life is limited - change the
batteries as soon as possible.
When this symbol flashes, it
indicates critical battery voltage.
Tests can be completed but all other
functions ( e.g. printing, backlight)
are inhibited - change batteries
immediately.
Softkey Line - Defines the left / right
softkey functions
Procedure Overview
Main Menu
1. Press the ON key. The Introduction screen is displayed:
09:53
04.05.00
MENU PATIENT
Press the left soft key to enter the MAIN MENU Press the right soft key to enter the patient screen
(Page 5) (Page 6)

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PATIENT
TEST
MEMORY
CALIBRATION
SETTINGS
Main Menu
If using the option for the first time select the required spiro settings and Spiro Standard. Select 'Settings' from
the main menu to display the Spiro settings - details of all spiro settings are given on the following pages. All these
settings are stored when the unit is switched off.
EXIT ENTER
EXIT/MENU Return to introduction screen/main menu
CURSOR UP /DOWN Move cursor (highlight bar) up/down
ENTER Select highlighted item
Details of all settings are detailed later.

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Entering Patient Data
2. From the introduction screen press the RIGHT soft key to enter patient data.
(From the main menu, highlight 'patient' and press the RIGHT soft key).
Pat-Name: Gender: M(M/F)
DAVID OVER Height: 71.7 ins
Pat-Number: Weight: 179 lbs
123-456-00 Ethnic: C(C/H/B/A)
Born: Smoker: Y(Y/N)
05-04-43 (mm-dd-yy) Room: 5
MENU ENTER MENU ENTER
3. Select a new patient or change existing patient
data with the up/down soft keys and press the
RIGHT soft key to confirm.
For a required character, a key must be pressed one or
more times dependant on whether in a numerical or letter
field. For example in an alpha numeric field (e.g. patient
name) the '2' key is:
1st press 'A'; 2nd press 'B'; 3rd press 'C'; 4th '1'; 5th 'A'
etc.
In a numeric field the number comes first.
MENU Return to main menu
Toggle between choices
Delete last character entered
or Toggle between choices
ENTER Enter details / Go to next line
NEW PATIENT
CHANGE DATA

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Entering Patient Data
Each printout is complete with the name and other information concerning the patient. Before beginning a
recording, the patient data should be entered. The following parameters have to be entered:
Pat-Name: Alpha-numeric field
Pat-Number: Alpha-numeric field
Born: Enter patients` data of birth in the order shown (defined in system
settings)
Gender: Select `M` (male) or `F` (female). Use up/down toggle
keys to change.
Height: Height in centimeters (numeric field)
(or inches (scaled to 1/10 inch), depending on unit setup)
Weight: Weight in kilograms (numeric field)
(or pounds, depending on unit setup).
Ethnic: Enter patients race - either:
W/B: `W` for White, `B` for Black
or C/H/B/A: `C` for Caucasian, `H` for Hispanic, `B` for Black;
`A` for Asian. Use up down toggle keys
Smoker: Enter `Y` (yes) or `N` (no). Use up/down toggle keys
to change.
Room: Alpha-numeric field

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Procedure Overview
4. Insert a new disposable sensor.
See page 26
WARNING
THE DISPOSABLE MOUTHPIECE IS DESIGNED FOR ONE-
TIME USE TO MINIMIZE THE DANGER OF CROSS
CONTAMINATION - DO NOT USE THE MOUTHPIECE FOR
MORE THAN ONE PATIENT.
5. Calibrate the Unit
The unit must be calibrated
nAt the beginning of each day
nWhen a significant temperature or pressure
difference occurs
The calibration procedure is detailed later.

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Selecting the Test
6. From the main menu Select the Test Option
EXIT ENTER MENU ENTER
EXIT/MENU Return to introduction screen/main menu
CURSOR UP /DOWN Move cursor (highlight bar) up/down
ENTER Select highlighted item
PATIENT
TEST
MEMORY
CALIBRATION
SETTINGS
FVC TEST
SVC TEST
MVV TEST
PRE
POST

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Taking a Test
7. For all tests the procedure is the same
The message `
before the measurement:
hold the sensor still
*** press START ***
appears on the display.
8. Press the START / STOPkey once
The device must be held upright and quite still
and no air should be breathed into the device
for at least one second before the START key is
pressed.
As soon as the patient starts to breath into the
Mouthpiece, the unit begins to record the flow.
The corresponding curve is represented on the
display. The break-off point for the
measurement is reached automatically (or
when the Stop key is pressed).

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SP-2 User Guide
Art. No. 71022-0000 Welch Allyn Schiller ©2000
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Taking a Test
Audible indications are given for each test as
follows:
FVC A beep is given at the end of exhalation
(indicating that inhalation (if required)
can begin), and at the end of the test.
SVC A beep is given when no flow is detected
(end of test) or in any case after 30
seconds.
MVV A beep is given after 12 secs (end of test).

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Taking a Test
WARNING: FALSE MEASUREMENTS CAN RESULT WHEN THE SENSOR IS NOT HELD VERTICALLY - ENSURE THAT THE UNIT IS HELD UPRIGHT WHEN
TAKING TESTS.
CAUTION: The SP-2 is a sensitive measuring device and must always be handled with care. Do not allow it to be dropped or
subjected to any sudden blows.
Forced Vital Capacity (FVC) Test
For this test the patient must exhale as quickly as possible from the time of starting the test.
Note: The FVC test employs the `Back extrapolation` method. If the extrapolated volume is too large (>0.15 liters or 5% of FVC),
then a warning appears on the display
To carry out the test for Forced Vital Capacity (FVC), highlight the `FVC` option in the test menu (previous page) and press the Enter key.
The corresponding coordinate presentation appears on the display.
The patient must exhale as quickly as possible from the time of starting the test so be sure that he understands what is required of him. If
inspiratory measurements are required, the exhalation can be immediately followed by a maximum inhalation. The inspiration results will be
given on the printout.
The coordinates represent the graph on which the curve will be drawn with the respiratory volume in liters being represented on the
vertical axis and the time in seconds on the horizontal axis.
ALSO SEE `SPIROMETRY TIPS` AT THE END OF THIS BOOK

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Taking a Test
Slow Vital Capacity (SVC) Test
The patient should breathe normally 3 times and then inhale to the
maximum extent of total lung capacity and then expire to the
maximum extent. Make sure that the patient understands what is
required of him.
MVV Test
The patient should breathe as deeply and as rapidly as possible
over a period of 6 to 12 seconds.
WARNING CARE SHOULD BE EXERCISED WHEN
PERFORMING THIS TEST AS THERE IS A
DANGER OFHYPERVENTILATION. ENSURE
THAT THE PATIENT IS SITTINGDOWN.

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Screen Information
Curves
TEST RESULT
TEST Return to test menu
No function in this screen
No function in this screen
RESULTS Display the results

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FVC
MEAS PRED %Pred
FVC 4.31 4.82 87
FEV1 3.50 4.532 79
FEV1/FVC 8.23 9.36 76
FEV3/FVC - - - - --
FEF.2-1.2 - - - - - -
FEF25-75% - - - - - -
Screen Information
Tabular
Once the test is completed, the measurement results are calculated.
To display the results in Tabular form, select RESULT (right key from the graph display).
Separate result tables are given for each test (FVC, SVC and MVV). The FVC screen displayed below is typical.
TEST CURVE
TEST Return to test menu
Previous result page / Next result page. Toggle through all calculated results.
The last page gives the interpretation.
CURVE Return to Test

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Post-Medication Tests
In order to carry out post-medication tests for comparison, select the `POST` from the test menu.
NOTE: THE POST OPTION IS ONLYAVAILABLEWHENA`PRE`TEST HAS BEEN CARRIED
OUT. WHENAPOST MEASUREMENT IS NOT POSSIBLETHE MENU OPTION IS
DIMMED. ON SWITCH ON, THE `POST` OPTION ISAVAILABLE FOR THE LAST
PATIENT BEFORETHE UNITWAS SWITCHED OFF.
MENU ENTER
The post-medication tests are carried out in the same way as the premedication tests. The printout
following post-medication tests will give the curves of both pre and post-medication tests (the post
medication curve is dashed). The measurement results are shown as the best results (pre/post), results as
a percentage of those predicted, (both pre and post) and the percentage change (i.e. difference) between
pre and post-medication results.
TO MINIMIZE THE DANGER OF CROSS INFECTION, DISPOSE OF THE
MOUTHPIECEIMMEDIATELYAFTERALLTESTS HAVEBEEN CARRIEDOUT.
FVC
SVC
MVV
PRE
POST

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PATIENT
TEST
MEMORY
CALIBRATION
SETTINGS
Memory
The memory allows approximately 50 recordings (dependent on size and parameters specified when the
recording was taken) to be stored, displayed and printed.
The results of the current patient are automatically stored when a new patient is entered. When the
unit is switched off, the current patient and test results are remembered and are available the next
time the device is switched on.
When no more recordings can be stored the message `MEMORY FULL` is displayed. Old recordings
must be deleted before further recordings can be stored. Enter the memory screen from the main menu:
Frederick Burt 24.05.00
Jones John 27.05.00
Smith Fred 12.06.00
* Overerly Jan 24.06.00
* Wyle Helen 24.06.00
MENU TAG

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Memory
MENU Go to Memory menu
UP Highlight previous patient
DOWN Highlight next patient
TAG Mark / Unmark highlighted
patient for deleting (see
next page). Tagged
recordings are indicated by
an asterisk before the name.

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SP-2 User Guide
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VIEW
DELETE
CANCEL
Memory
Menu
Frederick Burt 24.09.99
Jones John 27.09.99
Smith 12.10.99
MENU ENTER
MENU Go to Main menu
UP Highlight previous menu entry
DOWN Highlight next menu entry
ENTER When View selected - reads highlighted recording.
(see next page)
When Delete selected enters further menu options
for the deletion of all or only tagged recordings.
When cancel selected - returns to memory screen.

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PATIENT
TEST
MEMORY
CALIBRATION
SETTINGS
Displaying Test Data From a Stored Patient
1. From the memory menu, highlight the required patient and select the view option
as described previously.
2. Wait a few seconds forthe program to display and retrieve the selected patient data.
Pat-Name:
ABROTH DAVID
Pat-Number:
123-456-00
Born:
05-04-43 (mm-dd-yy)
MENU ENTER
3. Return to the main menu and select the test option.
4. The test screen is displayed:
before the measurement:
hold the sensor still
*** press START ***
MENU RESULT
5. Select RESULT to display the test results for the selected test. Note that the stored
tests can only be displayed in tabular form.