Exercise Testing A Flashcards
Contraindications to exercise testing: PaO2 less than ___ torr on room air.
45
Contraindications to exercise testing: PaCO2 greater than ___ torr.
70
Contraindications to exercise testing: FEV1 less than ___% of predicted
30%
Contraindications to exercise testing: Heart conditions such as a recent ____, unstable ____, and unstable ___.
Myocardial infarction
angina
heart rhythms (2nd or 3rd degree heartblocks)
Use a cycle ergometer when exercise testing patients who have difficulty ___.
Walking
To ensure rhythmic pedaling, use a ___ so patient can keep pace.
Metronome
How is a cycle ergometer better than a treadmill?
Provides more dependable workload.
What is the most common equipment for exercising a patient?
A treadmill.
What is the formula to determine or calibrate the speed of the treadmill?
Belt length x cycles per minute (RPM) = speed
Patient weight (is/is not) a factor when utilizing a treadmill. Patient weight (is/is not) a factor when utilizing a cycle ergometer.
Weight is a factor for the treadmill, but not for the cycle ergometer.
There are two things that are used in-line to monitor O2 and CO2 analyzers to monitor ventilation and expired gas concentrations. What are they?
Douglas Bag and Tissot Spirometer
How do you calculate maximum heart rate?
220-age (years)
In a steady state, the patient is exercised at sub-maximal level for a period of ____ minutes.
Patient is worked at ____% of maximum load.
Timing begins once the target is reached.
5-8 minutes
50-75%
Multistage (incremental) testing is used to determine ____. which is increased at pre-determined levels and measurements are made at the end of each stage. Then increase workload by ___.
Maximum tolerable workload
15 watts/min
Low workload: ____ watts or less
Medium workload: ___ watts
High workload: ___ watts
Too high for stress testing: ___ watts
Less than 50 watts
50-100 watts
Greater than 100 watts
200 watts