Correct Answer: D

Rationale: The correct answer is D: 12 months. Whole milk should be introduced at 12 months to ensure the infant's digestive system can handle the increased fat content. Introducing whole milk before 12 months can lead to digestive issues and potential allergies. Choices A, B, and C are incorrect because transitioning to whole milk before 12 months is not recommended for infants due to their digestive system still developing and not being able to handle the higher fat content of whole milk.

Correct Answer: A

Rationale: The correct answer is A: Non-steroidal anti-inflammatory drugs (NSAIDs). When a client is on Coumadin therapy, NSAIDs should be avoided because they can increase the risk of bleeding due to their antiplatelet effects. Choices B, C, and D are incorrect. Cough medicines with guaifenesin, histamine blockers, and laxatives containing magnesium salts do not have a significant interaction with Coumadin therapy that would necessitate avoidance.

Correct Answer: C

Rationale: In a client with an indwelling catheter and continuous bladder irrigation post TURP, minimal drainage into the urinary collection bag should be reported to the health care provider. This finding could indicate a blockage in the catheter or a complication that requires immediate attention. Light pink urine (choice A) is expected due to bladder irrigation. Occasional suprapubic cramping (choice B) is common post-TURP. Complaints of the feeling of pulling on the urinary catheter (choice D) may indicate discomfort but do not suggest an urgent issue like a potential blockage.

Correct Answer: A

Rationale: The correct answer is to change the TPN tubing and solution every 24 hours to reduce the risk of infection. This practice helps prevent microbial growth and contamination in the TPN solution. Monitoring the infusion rate closely (choice B) is important for preventing metabolic complications but does not directly reduce the risk of infection. Keeping the head of the bed elevated (choice C) is beneficial for preventing aspiration in feeding tube placement but is unrelated to reducing infection risk in TPN. Ensuring the solution is at room temperature before infusing (choice D) is essential for patient comfort and preventing metabolic complications but does not specifically address infection risk reduction.

Correct Answer: B

Rationale: Leukopenia should take priority in planning care for a client receiving external beam radiation to the mediastinum for bronchial cancer because it is a serious side effect that increases the risk of infection. Monitoring leukopenia is crucial to prevent complications. Esophagitis, fatigue, and skin irritation are also potential side effects of radiation therapy, but leukopenia poses a higher risk of life-threatening infections, requiring immediate attention.