Question 1

when could cardiac output decrease?

Accepted Answer

Low blood pressure: Cardiac output is related to the heart rate, and volume of blood the heart can pump with each heart beat.  A low cardiac output occurs when the pump function of the heart is compromised by an event such as a heart attack or when the blood volume is reduced by and event such as dehydration, or bleeding.

Question 2

what will happen if cardiac output decreases?

Accepted Answer

Cardiac Output: This is the amount of blood the heart pumps. If it decreases but is still adequate for the demands of the body, nothing much will happen. If it decreases below the metabolic demands of the body, organ dysfunction and shock will occur if the output level is low enough.

Question 3

what happens if cardiac output increases / decreases?

Accepted Answer

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.

Question 4

can you tell me if cardiac output increases / decreases?

Accepted Answer

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.

Question 5

what happens from decreased cardiac output?

Accepted Answer

Cardiac output: Decreased function of all the bodies systems.

Question 6

can cardiac output decrease or stay the same at rest?

Accepted Answer

Falls: When you rest, your heart rate falls, contractility falls, stroke volume falls, and as a result of all of the above, cardiac output falls.

Question 7

how can decreased cardiac output be caused by abnormal fluid volume?

Accepted Answer

Physiology: The amount of blood the left ventricle can pump (stroke volume) is directly related to "preload" which is based on the venous return to the heart. If volume is contracted from bleeding, diuresis, vasodilation, or poor intake,  preload is reduced, venous return is reduced, stroke volume is reduced &, if increased heart rate can't compensate for the reduction, then cardiac output is also reduced.

Question 8

if you have decreased urine output , does that increase or decrease cardiac output ?

Accepted Answer

Little effect: No effect unless you are dehydrated, in which case cardiac output may decrease.

Question 9

how is decreased cardiac output caused by increased fluid volume and decreased fluid volume?

Accepted Answer

Stroke volume: Cardiac output is determined by heart rate and volume of blood pumped by heart in each heartbeat (stroke volume).  Increased fluid volume increases the stroke volume and therefore cardiac output.  Decreased fluid volume decreases the stroke volume and therefore cardiac output.

Question 10

how can decreased cardiac output be caused by either increased fluid volume and decreased fluid volume?

Accepted Answer

Cardiac output: When systolic dysfunction is present, volume overloading can result in decreased stroke volume and cardiac output. In any cardiac status, decreased intravascular volume will result in decreased cardiac output.

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When could cardiac output decrease?

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What will happen if cardiac output decreases?

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What happens if cardiac output increases / decreases?

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Can you tell me if cardiac output increases / decreases?

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What happens from decreased cardiac output?

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Can cardiac output decrease or stay the same at rest?

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How can decreased cardiac output be caused by abnormal fluid volume?

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If you have decreased urine output , does that increase or decrease cardiac output ?

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How is decreased cardiac output caused by increased fluid volume and decreased fluid volume?

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How can decreased cardiac output be caused by either increased fluid volume and decreased fluid volume?

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