Which of the following is the correct procedure for measuring a patient's blood pressure using a manual sphygmomanometer?

Rationale: A. Allowing the patient to talk during the procedure is incorrect because talking can artificially elevate blood pressure readings. The patient should remain quiet and relaxed to obtain an accurate measurement. B. Inflating the cuff quickly to 200 mmHg regardless of the patient’s normal blood pressure is incorrect because unnecessarily high inflation can cause discomfort and pain and may increase the risk of vascular injury. Blood pressure should be measured by inflating the cuff 30 mmHg above the patient’s estimated systolic pressure. C. Wrapping the cuff over clothing is incorrect because clothing can interfere with accurate readings by preventing proper cuff inflation and transmission of pressure. Additionally, the stethoscope should be placed over the brachial artery, not the radial artery, when measuring blood pressure manually. D. Placing the cuff on the patient’s bare arm, ensuring it is level with the heart, and positioning the stethoscope over the brachial artery is correct. Proper positioning ensures that the cuff compresses the artery evenly, the stethoscope accurately detects Korotkoff sounds, and the reading reflects true blood pressure. Accurate technique involves the patient seated or lying with the arm supported at heart level, cuff size appropriate to arm circumference, inflation above systolic pressure, and slow deflation while listening for the first and last Korotkoff sounds to determine systolic and diastolic pressures.