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What is the percentage of cardiac output delivered to the heart

A 49-year-old member asked:
Dr. Louis Grenzer
54 years experience in Cardiology
About 4%: About 4% of the cardiac output goes to the heart muscle itself. That is the same either at rest or with exercise.
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A 45-year-old member asked:
Dr. Louis Grenzer
54 years experience in Cardiology
Two ways: Either by pumping out more blood with each beat (by squeezing harder) or by beating faster. The output is the heart rate times the stroke volume. (the ... Read More
A 40-year-old member asked:
Dr. Charles Glassman
35 years experience in Internal Medicine
Cardiac Output: Cardiac output equals stroke volume x heart rate. That means if the heart rate goes up the cardiac output will go up. The stroke volume is how much th ... Read More
A 29-year-old female asked:
Dr. Matt Wachsman
35 years experience in Internal Medicine
Varies.: BUT in a young healthy person, generally the heart rate is low because the heart is efficiently pumping and the cardiac output is good. Generally, (in ... Read More
A 38-year-old member asked:
Dr. Payam Mehranpour
22 years experience in Cardiology
Hormonal +/- nervous: The transplanted heart responds to hormonal changes. There is also some evidence that the transplanted heart may have some sympathetic re-innervation ... Read More
A 42-year-old member asked:
Dr. Bennett Werner
43 years experience in Cardiology
Echo: Echo is the simplest, easiest, cheapest, fastest way to determine the heart's strength ("ejection fraction"). Cardiac output, which is the product of ... Read More
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A 47-year-old member asked:
Dr. Bennett Werner
43 years experience in Cardiology
SVxHR=CO: You can count your heart rate by taking your pulse. That's the easy part. To get SV, you can do an echo to estimate it or do a right heart catheteriza ... Read More
A 49-year-old member asked:
Dr. Sergio Schabelman
47 years experience in Cardiology
Not with that data: Cardiac output is the product of heart rate by stroke volume (amount of blood the heart sends to the body with each heart beat). You do not have that ... Read More
A 53-year-old member asked:
Dr. Eric Stein
45 years experience in Interventional Radiology
All increase: Exercise causes an increased demand for blood flow to provide oxygen to the muscles doing the work. This is accomplished by increase in heart rate an ... Read More
A 47-year-old member asked:
Dr. Devon Webster
21 years experience in Medical Oncology
Swelling: The left side of the heart pumps blood throughout your body. When it fails, it decreases blood flow to organs. This can cause kidney injury, liver in ... Read More
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