Exam (elaborations)
CCT REVIEW: STRESS TESTING- QUESTIONS AND ANSWERS
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CCT REVIEW: STRESS TESTING- QUESTIONS AND ANSWERS
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CCT REVIEW: STRESS TESTING- QUESTIONS ANDANSWERS
What is the formula for double product? (rate pressure product) Correct Ans-heart rate x
SBP / 100
What is 1 MET Correct Ans-3.5mL/kg/min
Commonly used to express the functional aerobic impairment.
Calculates energy expenditure at given workloads
Formula for max heart rate Correct Ans-220-age in years
Chronotropic incompetence Correct Ans-inability to appropriately increase HR during
exercise
inotropic incompetence Correct Ans-the inability of the blood pressure to properly
increase with exercise
Thallium Stress Test Correct Ans-Radionuclide imaging that assesses normal and abnormal
cardiac function. Follows the pathway of potassium ion to the myocardium and is
administered at peak heart rate
MUGA Stress Test Correct Ans-Radionucleide angiography
, CCT REVIEW: STRESS TESTING- QUESTIONS AND
ANSWERS
Criteria for Terminating a Stress Test Correct Ans-1. Drop in BP or systolic pressures over
250mmHg or diastolic pressure over 100mmHg
2. Progressive Chest Pain
3. Sustained VTach
4. Runs of PVCs
Dipyridamole (Persantine) Correct Ans-1. potent coronary vasodilator
2. When injected IV, will cause increase in myocardial BF similar to that seen in exercise stress
test
3. May be used in patients unable to exercise sufficiently and reach adequate HR
4. May be used on patients on Blockers which will attenuate (reduce) the HR response in
exercise
Contraindications to Stress Testing Correct Ans-1. PaO2 less than 45 mmHg on room air
2. PaCO2 greater than 70mmHg
3. FEV1 less than 30% predicted
4. Recent MI
5. Unstable Angina
6. Second or third degree heart block
7. Rapid ventricular/atrial arrhythmias
8. Orthopedic problems that impair activity
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