Correct Answer: C

Rationale: The correct answer is C because the nurse should facilitate communication between the client and the surgeon to address any doubts and provide necessary information. Choice A may invalidate the client's concerns and might not address the root of the issue. Choice B oversimplifies the situation and might not consider the potential consequences of canceling surgery. Choice D, while offering an alternative, does not address the client's doubts about the surgery.

Correct Answer: B

Rationale: The correct answer is B: Client's vaccination history. Before administering the hepatitis B vaccine, it is essential to verify the client's vaccination history to ensure they are due for the vaccine. This helps in preventing unnecessary vaccinations and ensures the appropriate timing and dosage. Option A, the client's allergy to eggs, is not directly related to administering the hepatitis B vaccine. Option C, the client's weight, and option D, the client's blood pressure, are not factors that need to be specifically verified before administering the hepatitis B vaccine.

Correct Answer: A

Rationale: When administering sertraline, assessing blood pressure is crucial as this medication can potentially affect blood pressure levels. Monitoring blood pressure before giving sertraline helps ensure patient safety and allows for appropriate interventions if any significant changes are noted. Heart rate, respiratory rate, and mood changes are important assessments but are not typically the first priority when administering sertraline. While heart rate and respiratory rate can also be affected by sertraline, blood pressure assessment is a higher priority due to the medication's known effects on blood pressure regulation.

Correct Answer: A

Rationale: The nurse should prioritize ensuring the environment is safe for a client with a history of seizures. This intervention is crucial to prevent injury during a seizure. Administering medications as prescribed is important but ensuring a safe environment takes precedence to prevent harm. Monitoring for signs of infection and educating the client about triggers are also essential aspects of care but are not the priority when considering the immediate safety of the client during a seizure.

Correct Answer: A

Rationale: Corrected Rationale: The nurse should encourage the client to use the PCA pump before activities like dressing changes, which are likely to cause pain, to ensure effective pain management. Monitoring the client's respiratory status (Choice B) is important but not the priority in this scenario. Providing oxygen therapy (Choice C) is not a routine intervention for all clients on PCA unless specifically indicated. Ensuring the PCA pump is functioning properly (Choice D) is essential, but encouraging the client to use the PCA before painful activities takes precedence to manage pain effectively.