Explanation:
Given below is the procedure to measure blood pressure with sphygmomanometer:
1. A proper size blood pressure cuff must be used to measure the blood pressure.
2. Wrap the blood pressure cuff around upper arm with lower edge of the cuff one inch above antecubital fossa.
3. Press lightly stethoscope's bell over brachial artery present just below cuff's edge.
4. Inflate the cuff to 180mmHg rapidly and then release air from cuff at a moderate rate.
5. Listen with stethoscope and simultaneously observe sphygmomanometer. The first knocking sound (Korotkoff) is systolic pressure. When knocking sound disappears, that is diastolic pressure.
