5 doctors weighed in:
What influences cardiac output?
5 doctors weighed in

Dr. Francis Uricchio
Internal Medicine - Cardiology
3 doctors agree
In brief: Multiple things
Cardiac output is the product of heart rate in stroke volume.
Thus, an increase in heart rate results in an increase in cardiac output. Stroke volume can be affected by changes in preload, afterload, and contractility (strength of contraction). Preload is "priming the pump". Afterload is the resistance to ejection during systole (contraction).

In brief: Multiple things
Cardiac output is the product of heart rate in stroke volume.
Thus, an increase in heart rate results in an increase in cardiac output. Stroke volume can be affected by changes in preload, afterload, and contractility (strength of contraction). Preload is "priming the pump". Afterload is the resistance to ejection during systole (contraction).
Dr. Francis Uricchio
Dr. Francis Uricchio
Thank
Dr. Calvin Weisberger
Internal Medicine - Cardiology
In brief: Cardiac output
Stroke volume times heart rate equals cardiac output.
Stroke volume relates to myocardial contractility, vascular resistance, vascular volume, anemia and metabolic state. There are subcomponents to all of these.

In brief: Cardiac output
Stroke volume times heart rate equals cardiac output.
Stroke volume relates to myocardial contractility, vascular resistance, vascular volume, anemia and metabolic state. There are subcomponents to all of these.
Dr. Calvin Weisberger
Dr. Calvin Weisberger
Thank
Read more answers from doctors