A nurse is preparing to obtain a blood pressure reading from a school-age child. Which of the following actions should the nurse take?

Record the diastolic value as the first Korotkoff sound (K1).

Release the cuff pressure at a rate of about 5 mm Hg/second.

Position the child's arm at the level of the heart.

Select a cuff with a bladder size that is approximately 20% of the child's upper arm circumference.