CVT Stress Testing Protocols 2

Question 1

Which absolute contraindication requires immediate termination of a treadmill stress test?

Accepted Answer

Sustained ventricular tachycardia develops

Answer

Sustained ventricular tachycardia is an absolute indication to stop a stress test immediately due to the risk of hemodynamic compromise.

Question 2

In the Naughton protocol, how does the workload progression differ from the Bruce protocol?

Accepted Answer

Naughton increases workload more gradually, making it suitable for deconditioned patients

Answer

The Naughton protocol uses smaller, more gradual increments in speed and grade, making it better tolerated by deconditioned or post-MI patients.

Question 3

What is the primary purpose of the recovery phase monitoring period following a stress test?

Accepted Answer

To detect delayed ischemic changes or arrhythmias that appear post-exercise

Answer

Many significant ST changes and arrhythmias emerge or persist in recovery, making this phase critical for diagnostic accuracy.

Question 4

A patient's systolic blood pressure drops 20 mmHg below baseline during peak exercise. This finding most likely indicates:

Accepted Answer

Significant left ventricular dysfunction or severe coronary artery disease

Answer

Exertional hypotension (SBP drop ≥10–20 mmHg below baseline) suggests severe myocardial ischemia or left ventricular dysfunction and is a reason to stop the test.

Question 5

Which lead combination is considered MOST sensitive for detecting exercise-induced anterior ischemia during stress testing?

Accepted Answer

V4 and V5

Answer

Leads V4 and V5 overlie the anterior and lateral myocardium supplied by the LAD and are most sensitive for detecting anterior ischemic ST changes.

(CVT) Cardiovascular Technologist Certification Practice Test

(CVT) Cardiovascular Technologist Certification Practice Test

CVT Stress Testing Protocols 2