ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Total Peripheral Resistance
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Systole
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Diastole
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Cardiac Output
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Detailed explanation-1: -Cardiac output is the product of heart rate (HR) and stroke volume (SV) and is measured in liters per minute. HR is most commonly defined as the number of times the heart beats in one minute. SV is the volume of blood ejected during ventricular contraction or for each stroke of the heart.
Detailed explanation-2: -The heart rate multiplied by the stroke volume gives the cardiac output. The formula is given as CO = HR SV.
Detailed explanation-3: -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.
Detailed explanation-4: -Therefore, mean blood pressure (MBP) is usually calculated with a standard formula (SF) as follows: MBP = diastolic blood pressure (DBP) + 1/3 [systolic blood pressure (SBP) – DBP].