A member asked:

What influences cardiac output?

5 doctors weighed in across 2 answers
Dr. Francis Uricchio answered

Specializes in Cardiology

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).

Answered 11/7/2015

6.2k views

Thank
Dr. Calvin Weisberger answered

Specializes in

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.

Answered 12/9/2013

5k views

Thank

Related Questions

A member asked:

What systems affect cardiac output?

5 doctors weighed in across 2 answers

A member asked:

When could cardiac output decrease?

5 doctors weighed in across 2 answers

A member asked:

How do you ?Measure cardiac output?

A doctor has provided 1 answer

A member asked:

What are signs of high cardiac output?

5 doctors weighed in across 2 answers

A member asked:

What are normal cardiac output levels?

5 doctors weighed in across 2 answers

Online Primary Care Doctors Accepting New Patients

$44 video appointments available today with a membership as low as $15/month

Book a Video Appointment
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

Meet your new favorite doctor
...