Heart rate can be defined as the number of times a heart beats per minute in an adult healthy individual. The average heart rate is 72 times per minute. The increase in heart rate due to increased body temperature, sympathetic nervous supply to the heart or toxic condition of the heart may cause a condition called Tachycardia in which the heart rate increases than normal up to 100 times per minute.

What is the normal value of the cardiac index? What is the normal value of cardiac index?What is the normal value of cardiac index? What is the normal value of cardiac index? What is the normal value of cardiac index?

The amount of the blood pumped out by each ventricle per minute per square metre of the surface area of the body is called the cardiac index. It is also called the minute volume index. The average value of cardiac insect in a normal adult is about 3.3litres/ min/ m 2 .