Question

If a person's heart is pumping 5000 mL of blood in one minute and the heart rate is 50 beats per minute, what is the cardiac output?

(a) 250,000 ml/min
(b) 25, 000 ml/min
(c) 100 ml/min
(d) 1000 ml/min
(e) None of these.

Answer 1

The cardiac output is calculated by multiplying the heart rate by the stroke volume. In this case, the cardiac output would be 250,000 ml/min.

Step-by-step explanation:

The cardiac output can be calculated by multiplying the heart rate (HR) by the stroke volume (SV). In this case, the heart is pumping 5000 mL of blood in one minute, so the stroke volume is 5000 mL. The heart rate is given as 50 beats per minute. Therefore, the cardiac output would be:

Cardiac output = HR x SV

Cardiac output = 50 bpm x 5000 mL/min = 250,000 ml/min

Therefore, the correct answer is (a) 250,000 ml/min.