Correct Answer: B

Rationale: When providing mouth care to an unconscious client, the side-lying position is the best choice. This position helps prevent aspiration by allowing any fluids to drain out of the mouth easily, reducing the risk of choking or aspiration pneumonia. Placing the client in a side-lying position also promotes comfort and safety during the procedure.

Correct Answer: A

Rationale: Resonance refers to the quality of sound produced by vibrations that are reinforced by other vibrations of the same frequency. In the context of the human body, resonance is often associated with sounds produced by air-filled structures like the lungs, vocal cords, and resonating cavities. Therefore, the best description of resonance from the given options is 'Sounds created by air-filled lungs.' This choice aligns with the concept of resonance as it relates to sound production in the human body.

Correct Answer: A

Rationale: In medical abbreviations, 'TID' stands for 'ter in die,' which means three times a day, and 'p.o.' stands for 'per os,' which means orally. Therefore, the correct administration schedule for the ampicillin capsule is three times a day orally.

Correct Answer: C

Rationale: The abbreviation 'PRN' stands for 'pro re nata,' which translates to 'when necessary.' This term is commonly used in medical contexts to indicate that a medication should be taken as needed, not at scheduled intervals.

Correct Answer: A

Rationale: Orem's theory, also known as the Self-Care Deficit Nursing Theory, emphasizes individuals' ability to perform self-care to maintain health and well-being. One aspect of this theory is the maintenance of a sufficient intake of air, which is essential for sustaining life and overall health. This self-care component focuses on the individual's ability to meet their physiological needs, including the intake of air, to promote optimal functioning and health.