BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
CARDIOVASCULAR SYSTEM
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 is calculated by multiplying the stroke volume by the heart rate. Stroke volume is determined by preload, contractility, and afterload. The normal range for cardiac output is about 4 to 8 L/min, but it can vary depending on the body’s metabolic needs.
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.