When a chemical stress test is performed using Persantine, adenosine, or a similar chemical, how does the chemical affect the patient?
A)It stimulates the patient so he or she can exercise longer.
B)It changes the heart's rhythm from atrial fibrillation to normal sinus rhythm.
C)It relaxes the heart.
D)It mimics the stresses placed on the heart during exercise.

Question

Quizplus · Accepted Answer

Chemical stress tests using Persantine, adenosine, or similar chemicals are used to mimic the stresses placed on the heart during exercise when patients are unable to physically exercise. The chemical stimulates blood flow to the heart, causing it to work harder and thereby increasing oxygen demand. This helps diagnose the presence of any blockage or damage to the coronary arteries.

When a Chemical Stress Test Is Performed Using Persantine, Adenosine