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. Elevating the arm above heart level can cause a falsely low blood pressure reading; the arm should be at heart level. B. The cuff should be placed 2–3 cm (about 1 inch) above the antecubital space, not 5 cm, to ensure accurate measurement. C. Aligning the artery indicator with the brachial artery ensures the cuff inflates over the correct vessel, which is essential for an accurate blood pressure reading. D. The cuff should cover about 80% of the upper arm circumference, not 50%; using a cuff that is too small or too large can distort the measurement.