Vitalograph Spirotrac Instructions for Use
IFU Part No.: 07402
Issue 22
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Page 48 of 78 DT_0006-15
without performing a reversibility test session. A message box displays after each test
to indicate the reversibility i.e. the FEV
1
value as a % of the Baseline.
4.3.1.4 ATS exercise challenge testing
The challenge test procedure consists of multiple phases.
Baseline Phase: When the challenge session commences, the user may perform an
FVC session or select a previously performed FVC session for that subject. The best
accepted FEV
1
value from that session becomes the baseline value. It is not possible
to select/perform more than one baseline session. In each subsequent phase, a
message displays after each blow to indicate the % fall from the baseline value.
Exercise Phase: Once the baseline session has been selected/performed, the wizard
allows the user to proceed with the exercise phases. A maximum of five exercise
phases are possible (5, 10, 15, 20 and 30 minutes post exercise).
Reversibility Phase: The reversibility phase is optional and a maximum of three
reversibility sessions are possible. The user may exit out of the challenge series
without performing a reversibility test session. A message box displays after each test
to indicate the reversibility i.e. the FEV
1
value as a % of the Baseline.
4.4 Six Minute Walk Test
Vitalograph Spirotrac includes a Six Minute Walk Test module that measures the
distance a subject can walk quickly on a flat, hard surface in 6 minutes and reflects an
individual's ability to perform daily physical activities.
To perform a Six Minute Walk Test:
1. Once the required subject has been selected from the list, select the Test > Six
Minute Walk Test or Select the Six Minute Walk Test icon from the toolbar.
2. The Six Minute Walk Test instruction dialog opens. Read the instructions
carefully, tick 'I have read all instructions' and select Next.
3. A Medication dialog opens. Select Add to record a list of any medication that
the subject is taking at the present time. Add a medication if applicable. Select
Next.
4. Dyspnoea is a measure of shortness of breath and is a sign of serious disease
of the airway, lungs, or heart. Select a dyspnoea grade for the subject using the
Modified Medical Research Council Dyspnoea Scale, or MMRC. This uses a
simple grading system to assess a subject's level of dyspnoea. The MMRC is
used to help calculate the BODE Index, which is a tool for predicting life
expectancy of someone with COPD. Select Next.
5. Record Spirometry details for the subject either by performing an FVC test or by
entering the parameter values manually. To perform an FVC test, select the
FVC icon. The FVC test screen opens and the user can perform a test (See
Performing FVC Testing). Enter test values or perform an FVC test. Select
Next.
6. Record baseline heart rate and SpO
2
details for the subject by performing a
SpO
2
test or by entering the SpO
2
values manually. To perform a SpO
2
test,
select the SpO
2
icon . The SpO
2
testing screen opens and the user can
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