ANATOMY
CHEST AND CARDIOVASCULAR
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Heart Rate x Stroke Volume
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Stroke Volume x Tidal Volume
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Tidal Volume x Heart Rate
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None of the above
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Detailed explanation-1: -As we all know, Cardiac output is the total volume of blood that heart pumps every minute. The formula used to calculate cardiac output is given as CO = HR × SV.
Detailed explanation-2: -Cardiac output = heart rate x stroke volume The equation can be rearranged to find the heart rate and stroke volume if required: Heart rate = cardiac output ÷ stroke volume. Stroke volume = cardiac output ÷ heart rate.
Detailed explanation-3: -Cardiac output, expressed in liters/minute, is the amount of blood the heart pumps in 1 minute. Cardiac output is logically equal to the product of the stroke volume and the number of beats per minute (heart rate).
Detailed explanation-4: -The volume of blood pumped out by each ventricle per minute is called the cardiac output. It is given by the formula: Cardiac output = Heart rate x Stroke volume.