Manual Sphygmomanometer:

 

Method: A manual sphygmomanometer consists of an inflatable cuff, a pressure bulb, and a gauge or meter. The cuff is wrapped around the upper arm and inflated using the pressure bulb to a pressure that exceeds the systolic blood pressure. The pressure is then slowly released while listening to the brachial artery with a stethoscope. The first sound heard corresponds to the systolic blood pressure, while the point at which the sound disappears corresponds to the diastolic blood pressure.

 

Purpose: The purpose of a manual sphygmomanometer is to accurately measure a patient's blood pressure. It is an important diagnostic tool used to monitor and diagnose conditions such as hypertension, hypotension, and heart disease.

 

Electronic Sphygmomanometer:

 

Method: An electronic sphygmomanometer is a digital device that uses an inflatable cuff, but does not require a stethoscope. The cuff is wrapped around the upper arm and inflated automatically by the device. The device then detects the blood pressure using a sensor and displays the results on a digital screen.

 

Purpose: The purpose of an electronic sphygmomanometer is the same as a manual sphygmomanometer, which is to accurately measure a patient's blood pressure. Electronic sphygmomanometers are often used in clinical settings due to their ease of use and accuracy. They are also commonly used by patients at home for self-monitoring of blood pressure.