When measuring blood pressure, the stethoscope is typically placed over which artery?

The stethoscope is typically placed over the brachial artery when measuring blood pressure. This artery is located in the upper arm, and it is the most common site for auscultatory blood pressure measurement. Using the stethoscope over the brachial artery allows the practitioner to accurately detect the sounds of Korotkoff, which are the sounds associated with the blood flow as pressure is released from the cuff. This technique is vital for determining systolic and diastolic blood pressure readings.

Other arteries mentioned, such as the radial, femoral, and popliteal, are not standard sites for blood pressure measurement during routine clinical practice. The radial artery is often used for pulse checks but is less effective for detecting the sounds needed for blood pressure measurement. The femoral and popliteal arteries may be used in specific circumstances, such as in emergency settings or when assessing blood flow to lower limbs, but they are not standard locations for measuring blood pressure in most clinical situations.