Previous Year Question

A sphygmomanometer is an instrument used to measure blood pressure. According to MedlinePlus, a sphygmomanometer, commonly referred to as a blood pressure cuff, is used for measuring blood pressure.

Blood pressure is generally expressed using two values—

Systolic pressure = pressure in the arteries when the heart contracts
Diastolic pressure = pressure in the arteries when the heart relaxes

Blood pressure is commonly expressed in mmHg (millimetres of mercury).

Important fact: A value of 120/80 mmHg is often used as a reference for healthy adults, although normal blood pressure can vary depending on age, health and other factors.