Correct Answer: A

Rationale: The correct action for the nurse to take in this situation is to ask the client why she has changed her mind. By understanding the client's reasons for refusal, the nurse can address any concerns, provide further information, and ensure that the client's decision is respected. Proceeding with the surgery without clarifying the client's decision or notifying the surgeon immediately would not be appropriate. Documenting the client's decision is important, but it should be done after understanding the rationale behind the decision.

Correct Answer: A

Rationale: The correct answer is A because understanding pain management involves considering non-pharmacological approaches, such as listening to music for relaxation and comfort. Choice B is incorrect as excessive sleep may not be an effective pain management strategy. Choice C is incorrect because pain medication may still be necessary even if pain levels are low. Choice D is not the best answer, as it simply states following the nurse's suggestions without demonstrating an understanding of personalized pain management techniques.

Correct Answer: A

Rationale: Discharge planning should begin during the admission process for a client experiencing an exacerbation of heart failure. Initiating discharge planning early ensures timely and effective care transitions, which are crucial for managing the client's condition and preventing readmissions. Waiting until after the client stabilizes (choice B) could lead to delays in arranging necessary follow-up care and support services. Similarly, waiting for the client to request discharge planning (choice C) may result in missed opportunities for comprehensive care coordination. Planning at the time of discharge (choice D) is too late, as early intervention is key to promoting the client's well-being and recovery in the long term.

Correct Answer: B

Rationale: The correct answer is B: Stimulates hydrochloric acid production. Dexamethasone can stimulate the production of hydrochloric acid in the stomach, which may lead to irritation of the stomach lining. Taking dexamethasone with food or milk helps to neutralize or buffer the acid, reducing the risk of stomach irritation. Choice A is incorrect because dexamethasone does not inhibit pepsin production. Choice C is incorrect as dexamethasone does not slow stomach emptying time. Choice D is incorrect as dexamethasone does not reduce hydrochloric acid production.

Correct Answer: B

Rationale: Edema, indicated by 2+ edema of fingers and hands, can impair blood flow and peripheral perfusion, leading to reduced oxygen saturation readings on a pulse oximeter. High blood pressure (choice A) would not directly affect oxygen saturation readings. Radial pulse volume (choice C) and capillary refill time (choice D) are more related to assessing circulation rather than contributing significantly to oxygen saturation readings.