Question

In an experiment, the pulse rate of a normal human adult was counted six times at an interval of 5 minutes each and was recorded as under-
A. 94 per minute;
B. 80 per minute;
C. 75 per minute;
D. 73 per minute;
E. 75 per minute;
F. 74 per minute;
What conclusion can you draw from these counts?

Answer 1

Hint: Pulse rate or the heart rate is the number of times heart beat in a minute. In normal adults the heart rate varies from 60-100 beats per minute. It varies from person to person. The average pulse rate is 72 beats per minute.

Complete Answer:
- Pulse is the number of times the heart beats in 1 minute. The average heart rate is 72 beats per minute. The heart rate differs from person to person. The pulse is lower at rest and higher during activities.
- In the above question, the six different readings are provided. The average reading will give the correct pulse. So the average is 94+80+75+73+75+74/6 is 78. This value is for the normal healthy adult. Thus the person is a healthy adult.

Additional information: Measurement of pulse- It can be counted by putting the index finger and middle finger on your skin. On pressing the fingers tightly on the wrist, the blood pulsing beneath the fingers can be felt. Beats can be counted for 10 seconds. On multiplying the counts by 6 heartbeat can be calculated.

Note: The normal heart rate at rest for children between age 6-15 is 70-100 beat per minute and for adults it is 60-100 beats per minute. The irregular heart beat indicates some disease.