Question

question 6 of 20
the physical therapist notifies the nurse that a client with coronary artery disease (cad)
experienced a significant increase in heart rate during physical therapy. the nurse recognizes
that an increase in heart rate in a client with cad may result in which outcome?

myocardial ischemia

formation of a pulmonary embolism

release of potassium ions from cardiac cells

development of an atrial - septal defect

Explanation:

Coronary artery disease (CAD) involves narrowed coronary arteries, reducing blood flow to the myocardium. An increased heart rate increases myocardial oxygen demand. If the narrowed arteries can't supply enough oxygen - rich blood, myocardial ischemia (inadequate blood supply to the heart muscle) occurs. A pulmonary embolism is related to blood clots in the lungs, not directly to increased heart rate in CAD. Potassium release from cardiac cells is more related to cell damage like in myocardial infarction, not just increased heart rate. An atrial - septal defect is a congenital or acquired structural defect, not a result of increased heart rate in CAD.

Answer:

Myocardial ischemia