Correct Answer: B

Rationale: The correct answer is B because avoiding cleaning the cat's litter box during pregnancy reduces the risk of toxoplasmosis, which can be harmful to the developing fetus. Choice A is incorrect because visiting someone with chickenpox should be avoided as it is highly contagious. Choice C is incorrect as handwashing after gardening should involve soap and water, not just hot water, for effective infection prevention. Choice D is incorrect because antibiotics are ineffective against viral infections.

Correct Answer: D

Rationale: The correct answer is D. A cool left foot indicates impaired circulation, which could be a sign of compartment syndrome or impaired blood flow. This finding should be reported to the provider promptly for further evaluation and intervention. Serous drainage on the dressing is expected postoperatively and is not a concerning finding. A capillary refill of 2 seconds is within the normal range (less than 3 seconds is normal), indicating adequate peripheral perfusion. A heart rate of 62/min is also within the normal range for an adult, suggesting no immediate concern related to the surgery.

Correct Answer: C

Rationale: The correct instruction when taking alendronate is to remain upright for 30 minutes after administration. This helps prevent esophageal irritation, a known side effect of the medication. Option A is incorrect because alendronate should be taken in the morning on an empty stomach. Option B is incorrect as taking alendronate with food decreases its absorption. Option D is incorrect as alendronate should be swallowed whole with a full glass of water and not chewed.

Correct Answer: A

Rationale: Administering analgesics as prescribed is the appropriate intervention for managing perineal pain in a postpartum client. Analgesics help to alleviate discomfort and promote the client's recovery. Applying a warm compress (choice B) may provide some relief, but it does not address the pain as effectively as analgesics. Encouraging ambulation (choice C) and positioning the client with the head elevated (choice D) are not directly related to addressing perineal pain.

Correct Answer: D

Rationale: The correct answer is to infuse the blood within 4 hours. This is crucial to prevent bacterial contamination and hemolysis during blood transfusions. Monitoring the client's blood glucose level every hour (Choice A) is not directly related to packed RBC transfusions. Administering the blood using a microdrip set (Choice B) may be appropriate for specific medications but is not a requirement for packed RBC transfusions. Assessing the client's vital signs every 2 hours (Choice C) is important for monitoring the client's overall condition but is not as time-sensitive as ensuring the timely infusion of packed RBCs.