The position of the stethoscope for measuring blood pressure is as follows: 1. Human arterial blood pressure is measured mostly with the right upper arm, and the lower edge of the cuff is 2.5 cm above the elbow fossa when measuring blood pressure. The pickup part of the stethoscope is placed in the brachial artery at the elbow fossa below the cuff of the sphygmomanometer; lightly press the stethoscope to make full contact with the skin to achieve the best measurement effect, do not press too hard to avoid affecting the results of blood pressure measurement; 2, some patients with upper limb vascular anomalies or deformities can use the method of lower limb arterial blood pressure measurement, the stethoscope is placed at the pulsating popliteal artery in the popliteal fossa at the lower edge of the cuff. The stethoscope is placed in the popliteal artery pulsation at the lower edge of the cuff. The stethoscope relies on the sound of the arterial pulsation to determine the systolic and diastolic blood pressure values, and the environment needs to be quiet when measuring blood pressure. The measurement should be repeated twice, with an interval of about 2 min between each measurement, and the result of the measurement should be the average of the two readings.