Question

What drop in ejection fraction (EF) from rest to stress is considered abnormal?

A) <5%.
B) 5-10%.
C) 10-15%.
D) >15%.

Answer 1

An abnormal drop in ejection fraction (EF) from rest to stress is considered to be greater than 15%.

Step-by-step explanation:

The normal range for ejection fraction (EF) is approximately 55-70 percent, with a mean of 58 percent. An abnormal drop in EF from rest to stress is generally considered to be greater than 15%. Therefore, the correct answer is D) >15%.