Measuring blood pressure is a crucial aspect of maintaining cardiovascular health. Low blood pressure, also known as hypotension, occurs when blood pressure drops below normal levels. It can cause symptoms such as dizziness, fainting, and fatigue. Checking for low blood pressure is essential for early detection and proper medical management.
To check for low blood pressure, a sphygmomanometer, or blood pressure cuff, is used. The cuff is wrapped around the upper arm, and a stethoscope is placed over the brachial artery at the elbow crease. The pressure is then inflated until the blood flow in the artery is temporarily blocked. As the pressure is slowly released, the doctor or nurse listens for Korotkoff sounds, which are tapping sounds created by the blood flowing through the artery. The highest pressure at which these sounds are heard is the systolic blood pressure, and the lowest pressure at which they disappear is the diastolic blood pressure.
