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A 28-year-old member asked:

What influences cardiac output?

2 doctor answers5 doctors weighed in
Dr. Francis Uricchio
Cardiology 40 years experience
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).
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Calvin Weisberger
53 years experience
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.
Created for people with ongoing healthcare needs but benefits everyone.

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A 23-year-old member asked:

What is cardiac output influenced by?

2 doctor answers6 doctors weighed in
Dr. Charles Jost
Cardiology 38 years experience
Disease & more: Congenital heart disease, vitamin b1 defiency, anemia, thyroid problem, renal disease, liver disease, brain disease, vascular disease, blood disease, atherosclerosis, valve disease - these are the biggest influencers of cardiac output.
Created for people with ongoing healthcare needs but benefits everyone.
A 42-year-old member asked:

What are ?Influences that can alter cardiac output?

2 doctor answers5 doctors weighed in
Dr. Mark Rasak
Cardiology 35 years experience
Many: High cardiac out put can be from sepsis, thyroid disease, arterial-venous fistulas, anemia, vitamin defiency etc. Low out put can be from a heart attack and a weak heart muscle, virus induced cardiomyopathy, severe valvular heart disease. Just to name a few.
Created for people with ongoing healthcare needs but benefits everyone.
A 52-year-old member asked:

What are factors that influence the cardiac output?

2 doctor answers6 doctors weighed in
Dr. Mark Milunski
Cardiology 39 years experience
Cardiac output: In strict physiologic terms, cardiac output is determined by something called stroke volume and heart rate. Heart rate is self-explanatory. Stroke volume is the amount of blood that the heart pumps out with each beat. This in turn is dependent on blood pressure, total blood volume, and how strong the heart contracts.
Created for people with ongoing healthcare needs but benefits everyone.
A 48-year-old member asked:

What's cardiac output?

2 doctor answers13 doctors weighed in
Dr. Francis Uricchio
Cardiology 40 years experience
Heart pump volume: The cardiac output is the volume of blood per minute pumped by the heart. Cardiac output is equal to heart rate multiplied by stroke volume (the volume of blood ejected with each heartbeat).
Created for people with ongoing healthcare needs but benefits everyone.

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Last updated Nov 7, 2015

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