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A 52-year-old member asked:

What are factors that influence the cardiac output?

2 doctor answers6 doctors weighed in
Dr. Mark Milunski
Cardiology 37 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.
Dr. Daniel Zanger
Cardiology 33 years experience
Multifactorial: Cardiac out put is the product of stroke volume (the amount of blood pushed out of the the left ventricle with each cycle) multiplied by the heart rate giving a number measured in liters per minute. Factors including how well the heart is working and resistance to flow will affect cardiac output.

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A 42-year-old member asked:

What are ?Influences that can alter cardiac output?

2 doctor answers5 doctors weighed in
Dr. Mark Rasak
Cardiology 33 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.
CA
A 36-year-old member asked:

What factors can affect cardiac output?

4 doctor answers8 doctors weighed in
Dr. Mark Milunski
Cardiology 37 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.
Dr. Sahba Ferdowsi
General Practice 18 years experience
Great answer!
Jan 29, 2012
A 28-year-old member asked:

What factors in the body affect the cardiac output?

2 doctor answers6 doctors weighed in
Dr. Charles Jost
Cardiology 36 years experience
Many factors: 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.
CA
A 23-year-old member asked:

What is cardiac output influenced by?

2 doctor answers6 doctors weighed in
Dr. Charles Jost
Cardiology 36 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.
A 28-year-old member asked:

What influences cardiac output?

2 doctor answers5 doctors weighed in
Dr. Francis Uricchio
Cardiology 38 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).

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Last updated Sep 28, 2016

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