Correct Answer: D

Rationale: The correct answer is 'D: Contact.' Contact precautions are necessary for clients with MRSA pneumonia to prevent the spread of the resistant bacteria. MRSA is primarily spread by direct contact, so using contact precautions, such as wearing gloves and gowns, is essential. Choice A, 'Reverse,' is not a type of isolation precaution. Choice B, 'Airborne,' is not the appropriate isolation for MRSA pneumonia, as MRSA is not transmitted through the airborne route. Choice C, 'Standard precautions,' are important for all clients, but for MRSA pneumonia specifically, contact precautions are more targeted and necessary.

Correct Answer: B

Rationale: Swollen, bleeding gums are a classic sign of scurvy, which is caused by a deficiency in Vitamin C. Dry, red conjunctiva, inflammation of the tongue, and pale, brittle nails are not specific manifestations of Vitamin C deficiency, making them incorrect choices.

Correct Answer: D

Rationale: After intravenous pyelography, monitoring urine output is crucial to assess kidney function and detect any early signs of complications. Decreased urine output could indicate a problem with kidney function or potential complications from the procedure. While rest and hydration are important, the priority lies in monitoring urine output for any abnormalities. Eating a light diet may be recommended, but it is not the priority post-procedure instruction.

Correct Answer: C

Rationale: A cold, pale lower leg is the most concerning finding as it indicates poor blood flow, potentially suggesting a serious circulatory problem that requires immediate attention. Diminished bowel sounds, loss of appetite, and tachypnea may be relevant but are not as indicative of a critical circulatory issue as a cold, pale lower leg.

Correct Answer: C

Rationale: The correct answer is C, 'Chicken.' Heme iron from animal sources, such as chicken, is more easily absorbed by the body compared to non-heme iron from plant sources like spinach, dried apricots, and lentils. While plant-based iron sources are beneficial, they are not as readily absorbed by the body as heme iron from animal products.