Question

Which of the following could be a cause of an irregular systolic reading?

A) Blood is not following properly from the vein to the heart.
B) Carbon dioxide and oxygen are mixing in the blood .
C) The left ventricle is having difficulty contracting.
D) The one way valve in the veins are not working.

Answer 1

the answer is a.A) Blood is not following properly from the vein to the heart.\i did this same test lol