GENERAL ANATOMY
CARDIOVASCULAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CO= HR x SV
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CO= HR + SV
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CO= HR x SR
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SO= HR x SV
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Detailed explanation-1: -The formula used to calculate cardiac output is given as CO = HR × SV. SV-Stroke volume-the amount of blood circulated by the heart with each beat.
Detailed explanation-2: -The heart rate multiplied by the stroke volume gives the cardiac output. The formula is given as CO = HR SV. It denotes the volume of blood being pumped out by the heart.
Detailed explanation-3: -The formula is Heart Rate x Stroke Volume = Cardiac Output. For example, if your heart rate is 60 bpm and your stroke value is 70 ml, the equation looks like this: 60 bpm x 70 ml = 4200 ml/min or 4.2 liters (1.1 US gal) a minute.
Detailed explanation-4: -Cardiac Output (CO) is the amount of blood the heart pumps from each ventricle per minute. It is usually expressed in litres per minute (L/min). CO = HR x SV. Changes in either HR or SV can alter CO. Impaired regulation of SV (including preload, afterload and contractility) can have a significant adverse affect on CO.