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Pulmonary Function Testing NBRC > Exercise Testing A > Flashcards

Exercise Testing A Flashcards

1
Q

Contraindications to exercise testing: PaO2 less than ___ torr on room air.

A

45

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2
Q

Contraindications to exercise testing: PaCO2 greater than ___ torr.

A

70

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3
Q

Contraindications to exercise testing: FEV1 less than ___% of predicted

A

30%

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4
Q

Contraindications to exercise testing: Heart conditions such as a recent ____, unstable ____, and unstable ___.

A

Myocardial infarction
angina
heart rhythms (2nd or 3rd degree heartblocks)

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5
Q

Use a cycle ergometer when exercise testing patients who have difficulty ___.

A

Walking

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6
Q

To ensure rhythmic pedaling, use a ___ so patient can keep pace.

A

Metronome

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7
Q

How is a cycle ergometer better than a treadmill?

A

Provides more dependable workload.

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8
Q

What is the most common equipment for exercising a patient?

A

A treadmill.

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9
Q

What is the formula to determine or calibrate the speed of the treadmill?

A

Belt length x cycles per minute (RPM) = speed

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10
Q 
Patient weight (is/is not) a factor when utilizing a treadmill.
Patient weight (is/is not) a factor when utilizing a cycle ergometer.
A

Weight is a factor for the treadmill, but not for the cycle ergometer.

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11
Q

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?

A

Douglas Bag and Tissot Spirometer

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12
Q

How do you calculate maximum heart rate?

A

220-age (years)

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13
Q

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.

A

5-8 minutes

50-75%

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14
Q

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 ___.

A

Maximum tolerable workload

15 watts/min

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15
Q

Low workload: ____ watts or less
Medium workload: ___ watts
High workload: ___ watts
Too high for stress testing: ___ watts

A

Less than 50 watts
50-100 watts
Greater than 100 watts
200 watts

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16
Q

Power is measured in what units?

How do you define power?

A

Watts

Amount of work per minute

17
Q

How do you define workload?

What units are used to measure workload?

A

Workload is the amount of energy being generated by a patient during exercise
Measured in kilopond-meters (kpm)
(That’s not a typo. Kilopond-meters is correct.)

18
Q

How is energy measured? (x2)

A

It’s measured by O2 consumption (VO2) in liters per minute or in terms of METs.

19
Q

A ___ is a unit that mesures O2 consumption (VO2) per kilogram of body weight.

A

MET

20
Q

How do you calculate energy expenditure at any given workload?

A

VO2 divided by Patient weight (kg) divided by 3.5 = number of METS performed

21
Q

What is an anaerobic threshold?

A

level of exercise or O2 consumption (VO2) at which anaerobic metabolism will begin to supplement aerobic metabolism

22
Q

What can you expect to see if you are beyond the anaerobic threshold?

A

Increasing lactate
pH decreases
Heart rate remains stable
RER/RQ will increase to 1.0 or higher

23
Q

What is O2max?

A

A point where work continues to increase but VO2 does not.

24
Q

What is the Bruce Protocol?

A

It’s a common method used in stress testing where the workload in increased every 3 minutes.

25
Q

What is the Borg Scale?

What is the Modified Borg Scale?

A

A rating of perceived exertion. It is the patient’s own evaluation of their level of dyspnea.

26
Q

During exercise testing, O2sat should remain above __ percent.
A decrease of ____% is significant and indicates a ____ disorder.

A

90%

4-5%, pulmonary disorder

27
Q

True or false: When measuring blood pressure during exercise testing, you can use an automatic cuff or a manual cuff.

A

True. Manual or automatic is fine.

28
Q

The tidal breathing flow-volume loop can be monitored during stress testing to identify ___.

A

Disorders that occur only during exercise.

29
Q

If resting SpO2 is low, what should you do before starting stress testing?

A

Perform oxygen titration.

30
Q

What should you do with stress-testing patients with hypoxemia at rest or at a low level of work?

A

Test with O2 via n/c.

Pulmonary Function Testing NBRC (15 decks)

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