Questions: A nurse is teaching range-of-motion exercises to a client who has osteoarthritis. Which of the following client positions demonstrates an understanding of supination of the hand? A. The client holds the hand with the palm up. B. The client holds the hand with the palm down. C. The client points the fingers toward the floor. D. The client points the fingers toward the ceiling.

The answer is the first one (A): The client holds the hand with the palm up.

Explanation for each option: A. The client holds the hand with the palm up. - Correct. Supination of the hand involves rotating the forearm so that the palm faces upward or forward. This position demonstrates an understanding of supination.

B. The client holds the hand with the palm down. - Incorrect. This position is known as pronation, not supination.

C. The client points the fingers toward the floor. - Incorrect. This position does not specifically relate to supination or pronation but rather to wrist flexion.

D. The client points the fingers toward the ceiling. - Incorrect. This position does not specifically relate to supination or pronation but rather to wrist extension.

Summary: The correct position that demonstrates an understanding of supination of the hand is holding the hand with the palm up.