Correct Answer: C

Rationale: The correct answer is C: 'Do not discontinue the medication abruptly.' It is crucial for clients prescribed prednisone to not stop the medication suddenly to prevent adrenal insufficiency, as this medication suppresses the body's natural production of cortisol. Choice A is incorrect because prednisone should be taken with food to minimize gastrointestinal side effects, not necessarily to prevent stomach upset. Choice B is incorrect as there is no specific need to avoid sunlight while taking prednisone. Choice D is not directly related to prednisone use; while adequate fluid intake is generally beneficial, it is not a specific instruction for prednisone administration.

Correct Answer: A

Rationale: The correct answer is A. It is crucial for the client to remove the hearing aid before showering to prevent damage from moisture. Choice B is incorrect as wearing the hearing aid all the time, including during sleep, is not recommended and can cause discomfort or harm. Choice C is incorrect as alcohol can damage hearing aids; they should be cleaned with a solution recommended by the manufacturer to prevent harm. Choice D is incorrect because hearing aids should not be turned off when not in use; instead, they should be stored properly following the manufacturer's instructions to maintain functionality and battery life.

Correct Answer: A

Rationale: The correct answer is A. Washing out the feeding bag once every 24 hours with warm water can lead to bacterial growth due to inadequate cleaning, potentially causing diarrhea. Hot water, as in choice B, can also promote bacterial growth, which is not desirable. Changing the feeding bag every 48 hours, like in choice C, is within an acceptable timeframe and is unlikely to be a cause of diarrhea. Adding water to the formula before administration, as in choice D, is a common practice to dilute the formula but is not typically associated with causing diarrhea in this scenario.

Correct Answer: D

Rationale: The correct answer is 'D: I can take aspirin if I have a headache.' This statement indicates a need for further teaching because aspirin can increase the risk of bleeding in clients taking warfarin. Clients on warfarin therapy should avoid taking aspirin or any other medications that can increase the risk of bleeding without consulting their healthcare provider. Choices A, B, and C are correct statements that demonstrate understanding of warfarin therapy and its potential side effects. Avoiding foods high in vitamin K helps maintain the effectiveness of warfarin, taking medication at the same time every day ensures consistent therapeutic levels, and using a soft toothbrush helps prevent gum bleeding, which can be a side effect of warfarin therapy.

Correct Answer: C

Rationale: The correct answer is C, Serum albumin. In clients with chronic renal failure and generalized edema, monitoring serum albumin levels is crucial as it is a key indicator of fluid balance. Low serum albumin levels can contribute to edema formation due to decreased oncotic pressure, indicating fluid imbalance. Serum potassium (Choice A) is more related to kidney function and electrolyte balance in renal failure patients. Serum calcium (Choice B) is important for bone health but is not directly related to fluid balance. Serum sodium (Choice D) is more indicative of hydration status and electrolyte balance but may not directly reflect fluid balance in the context of chronic renal failure and edema.