Final answer:
The correct selection of size for a blood pressure cuff is when the width of the cuff completely encircles the circumference of the arm.
Step-by-step explanation:
The correct selection of size for a blood pressure cuff is when the width of the cuff completely encircles the circumference of the arm. This ensures an accurate reading by evenly distributing the pressure around the arm. Using a cuff that is too narrow or too wide may lead to inaccurate blood pressure measurements.
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