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Doctor insights on: Will Thyroxin Increase Cardiac Output

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Dr. Cynthia Archer
916 doctors shared insights

Cardiac Output (Definition)

Cardiac output is a measurement of the amount of blood a person's heart can pump out during a set amount of time. The measurements help doctors figure out how strong or weak ...Read more


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I'm curious what occurs if cardiac output increases? What if it decreases?

I'm curious what occurs if cardiac output increases? What if it decreases?

Constantly changing: Your cardiac output (which is the product of stroke volume and heart rate, expressed in liters per minute) is constantly changing in response to your metabolic needs. ...Read more

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What could increase cardiac output?

What could increase cardiac output?

Cardiac output: Basically an increase in demand for oxygen by the body. This may be physiological (exercise) or pathological (sepsis - infection - fever) or increased metabolism (hyper active thyroid gland - hyperthyroidism) or abnormal conducts (shunting of blood). ...Read more

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How do beta-clockers increase cardiac output?

How do beta-clockers increase cardiac output?

They don't: Beta blockers do not increase cardiac output. If anything, they reduce cardiac output by reducing heart rate and the strength of contraction (contractility). ...Read more

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What happens if cardiac output increases / decreases?

What happens if cardiac output increases / decreases?

Natural: This is the normal pattern of the heart's output based upon the load conditions. The amount of blood filling the heart may vary mildly over time and combined with your level of activity and the force against your heart's ejection of blood (after load) the cardiac output may vary. Most important is that the output does not drop very low as in severe volume loss or weakness of the heart muscle. ...Read more

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Can you tell me if cardiac output increases / decreases?

Can you tell me if cardiac output increases / decreases?

Both: In a normal person, cardiac output increase with exertion then returns to a normal or resting level. With a malfunctioning heart, cardiac output is frequently considered low or subnormal. ...Read more

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Will acetylcholine raise cardiac output?

Will acetylcholine raise cardiac output?

No: Acetylcholine neurotransmission has an inhibitory effect on the heart, which lowers heart rate thereby decreasing cardiac output. ...Read more

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How can an increased cardiac output help exercise?

How can an increased cardiac output help exercise?

Exercise increase CO: Exercise increases cardiac output as it usually increases both heart rate(hr) and stroke volume (sv) (amount of blood ejected by the heart in each beat) as cardiac output (co) = hr x sv. It is a compensatory mechanism to keep up with the demands of oxygen by the body doing exercise. If the cardiac output would not increase, the body would not be able to perform for long. ...Read more

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Can you tell me how could an increased cardiac output help exercise?

Can you tell me how could an increased cardiac output help exercise?

Increase O2 delivery: During exercise, the muscles burn more oxygen for fuel. Increasing cardiac output increases the amount of oxygen carried by the blood to the tissues. ...Read more

Dr. Lawrence Kessler
5 doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more