Correct Answer: A

Rationale: The correct order for the client to perform the procedure is to first obtain the blood glucose level. This step is crucial as it helps determine the appropriate dose of insulin based on the sliding scale. Verifying the insulin prescription, drawing insulin into the syringe, and cleansing the selected site are important steps in the process but should follow after obtaining the blood glucose level. Therefore, options B, C, and D are incorrect in terms of the initial steps required for sliding scale insulin administration.

Correct Answer: A

Rationale: The correct answer is A. Clients with mechanical valve replacements need to take prophylactic antibiotics before dental procedures to prevent endocarditis. Choice B is incorrect because even with a new valve, heart medications may still be necessary to manage the condition. Choice C is incorrect because mechanical valves typically do not need replacement as frequently as within 10 years. Choice D is incorrect because hearing a clicking sound near the heart could indicate valve malfunction, not just the need to notify the healthcare provider.

Correct Answer: D

Rationale: In this situation, the priority action for the nurse is to change the client's position. Altering the client's position can help facilitate better fluid drainage in peritoneal dialysis, potentially resolving the issue without the need for more invasive interventions. Continuing to monitor intake and output (Choice A) is important but addressing the immediate drainage issue takes precedence. Checking blood pressure and serum bicarbonate levels (Choice B) is not directly related to the observed output flow discrepancy. Irrigating the dialysis catheter (Choice C) should not be the initial action as it is more invasive and should be considered only if repositioning does not resolve the issue.

Correct Answer: A

Rationale: Blowing cool air from a hair dryer under the cast is a safe method to relieve itching without damaging the cast or causing injury. The air helps to dry out the moisture that is causing the itching. Twisting the cast back and forth (choice B) can create pressure points and discomfort for the child. Shaking powder into the cast (choice C) can introduce foreign material that may cause skin irritation. Pushing a pencil under the cast edge (choice D) can injure the child's skin or even dislodge the cast.

Correct Answer: A

Rationale: The correct answer is A because in tertiary prevention, the focus is on managing complications and providing rehabilitation. Choice B is more aligned with primary prevention as it focuses on early diagnosis. Choice C's attendance in education sessions is not a direct indicator of managing complications. Choice D's improvement in knowledge does not directly measure the program's effectiveness in managing complications.