Cardiac Output is Determined by Heart Rate And

Question

Cardiac output is determined by heart rate and
A) systemic vascular resistance.
B) stroke volume.
C) hematocrit.
D) hemoglobin concentration.

Accepted Answer

Cardiac output is the amount of blood pumped by the heart in one minute. It is determined by heart rate and stroke volume, which is the amount of blood pumped by the left ventricle in one contraction. Systemic vascular resistance, hematocrit, and hemoglobin concentration can affect the workload of the heart, but they do not directly determine cardiac output.