Vitalograph Spirotrac Instructions for Use
IFU Part No.: 07402
Issue 22
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Page 41 of 78 DT_0006-15
Ratio of FEV
1
to Height in meters squared
Airways Resistance Indirect
Ratio of FEV
1
versus FIVC
Ratio of FIV
1
versus FIVC
Maximum tidal breathing flow-rate
Maximum inspiratory flow-rate
Inspiratory Flow Reserve (IFR)
Ratio of FEF50 versus FIF50
Maximum Voluntary Ventilation (L/min)
The duration of the MVV test
The number of full breaths in the MVV test expressed as breaths/min
Mean Inhalation Flow Rate (L/min)
Inspiratory Volume (L/min)
Inspiratory Flow Time (s)
Time to Peak Inspiratory Flow (ms)
BreathHold Time from the end of inspiratory to end of test (s)
Time to Lower Flow Threshold (ms)
Time to Upper Flow Threshold (ms)
The Flow at which the Canister Activation Occurred (L/min)
CANISTER
ACTIVATION VOLUME
The Volume at which the Canister Activation Occurred (L)
The time at which the Canister Activation Occurred (s)
4.1.8 Test Quality Information
After every test manoeuvre, a quality control window displays which is intended to
increase or maintain maximum performance throughout a session. Two types of