Question

An athlete's cardiac output is 4800ml. The volume of blood in his left ventricle is 150ml at the end of diastole and 50ml at the end of systole.What would be the interval between two successive R waves on his ECG? options 1.) 1.5 sec 2.) 0.8 sec 3.) 1.05 sec 4.) 1.25 sec​

Answer 1

Answer: The answer is 0.8sec

Answer 2

the interval between two successive R waves on his ECG is  1.25 sec

Option d

Explanation:

• the volume of blood in the left ventricle is equal to 150 ml at the end of diastole and 50 ml at the end of system.

• Therefore the volume of blood which has been pumped or cardiac output is equal 100 ml.

• The cardiac output is 4800 ml , therefore the heart rate is equal to 4800 /100 which is equal to 48 beats per minute

• Therefore the interval between two successive R wave is equal to 60/ 48 = 1.25sec

To know more about cardiac output,

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