Correct Answer: D

Rationale: When examining a client's abdomen, the initial technique used is inspection. Inspection involves visually assessing the abdomen for any abnormalities, such as distention, scars, or rashes. This step allows the healthcare provider to gather valuable information before proceeding to other examination techniques like palpation, auscultation, and percussion.

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: 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.

Correct Answer: A

Rationale: The left atrium receives oxygenated blood from the lungs via the pulmonary veins. This oxygen-rich blood is then pumped into the left ventricle before being circulated throughout the body. The right atrium, on the other hand, receives deoxygenated blood from the body via the vena cava.

Correct Answer: C

Rationale: In medical terminology, 'CBR' stands for Complete Bed Rest. This term indicates the necessity for a patient to remain in bed without engaging in any physical activities beyond what is essential for daily living, to aid in the recovery process or to prevent further health complications.