A nurse is preparing to obtain an electronic blood pressure measurement on a client. Which of the following actions should the nurse plan to take?

A. The cuff should be positioned 2–3 cm (about 1 inch) above the antecubital space, where the brachial artery is palpable. Placing the cuff too high (e.g., 5 cm) can interfere with proper inflation and pressure transmission, leading to inaccurate or falsely elevated readings. B. The arm should be supported at heart level. If the arm is above heart level, the reading may be artificially low because the hydrostatic pressure in the arteries is reduced. Conversely, if the arm is below heart level, readings may be falsely high due to increased hydrostatic pressure. C. The cuff bladder should cover 80–100% of the arm circumference and two-thirds of the arm length. A cuff that is too small (50%) compresses the artery too tightly, causing overestimation of blood pressure. A cuff that is too large can underestimate blood pressure. Using the correct cuff size is essential for accurate measurement. D. Electronic blood pressure cuffs detect arterial pulsations through the bladder. Aligning the cuff’s artery marker with the brachial artery ensures that the oscillometric sensors are positioned correctly to measure systolic and diastolic pressures accurately. Proper placement minimizes measurement errors and is a standard part of correct blood pressure technique.