Normal heart rate in a two months old infant is

<72/min

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60 to 72/min

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>72/min

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16/min

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Solution

The correct option is C >72/min
Children below the age of 16 yrs normally have a much higher pulse rate than adults. After that their pulse rate becomes almost similar to that of adults, i.e., 72 beats/min. Children of 3 to 4 years old has 80 to 120 beats per minute.

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Similar questions

Q. Assertion :The normal heart rate is 72/min and cardiac cycle is of 0.8 sec. Reason: This means cardiac cycle is inversely proportional to the heart rate.

Q. In a cardiac cycle, if the stroke volume is 70 ml and heart rate is 72 beats/min, the cardiac output is

Stroke volume is the amount of blood the left ventricle pumps out in one cardiac cycle. This is around 70 ml. Now, to get the cardiac output, we have to multiply (i)__ with the normal heart rate of (ii)__ beats/min and we get (iii)__ ml/min. This means that in one minute, a normal heart pumps about (iv)__ litres of blood out.

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