In a cardiac output of 5250 ml per minute, with 75 heartbeats per minute, what is the stroke volume?

55 ml

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60 ml

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70 ml

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80 ml

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Solution

The correct option is C
70 ml

Cardiac output = Stroke volume $\times$ heart rate

Stroke volume = $\frac{C a r d i a c o u t p u t}{h e a r t r a t e} \to \frac{5250}{75} = 70 m l$

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