Correct Answer: B

Rationale: A weak pulse and numbness distal to a radial artery catheter may indicate occlusion or damage to the artery, and immediate removal of the catheter is necessary to prevent complications. Therefore, promptly removing the catheter from the radial artery (Choice B) is the correct action. Monitoring the site (Choice A) would delay necessary intervention, elevating the client's arm (Choice C) may not address the underlying issue, and notifying the healthcare provider for surgery (Choice D) without removing the catheter promptly could lead to further complications.

Correct Answer: D

Rationale: The correct answer is D, severe abdominal pain. After a liver biopsy, severe abdominal pain is a critical finding that requires immediate reporting as it may indicate internal bleeding or damage to the liver. The other vital signs provided in choices A, B, and C are within normal limits and may not be directly related to complications post liver biopsy. Therefore, the priority is to address the severe abdominal pain promptly to prevent any further complications.

Correct Answer: C

Rationale: The most important instruction for the nurse to provide to a client scheduled for a colonoscopy and prescribed a bowel preparation is to take the entire bowel preparation as directed. Completing the entire bowel preparation as prescribed is crucial to ensure the colon is properly cleansed for the colonoscopy. Incomplete bowel prep can interfere with the visualization of the colon, leading to inaccurate results. Choices A, B, and D are important but not as crucial as ensuring the complete intake of the bowel preparation for an effective procedure.

Correct Answer: B

Rationale: To assess for an S3 heart sound, the nurse should listen with the bell of the stethoscope. An S3 heart sound is often low-pitched and best heard with the bell. Choice A is incorrect because switching to the diaphragm is not ideal for detecting low-pitched sounds like an S3. Choice C is incorrect as the S3 heart sound is best heard over the apex of the heart, not the aortic area. Choice D is incorrect because moving to the apical area is appropriate, but the nurse should specifically use the bell of the stethoscope to listen for S3 sounds.

Correct Answer: B

Rationale: Turning and repositioning a client is within the scope of practice of a UAP. This task helps prevent pressure ulcers and assists in maintaining the client's comfort and mobility. Assessing pain level post-surgery requires clinical judgment and interpretation, making it appropriate for a PN or RN. Administering medication like insulin involves critical thinking and potential adjustments based on the client's condition, which is the responsibility of a licensed nurse. Changing postoperative dressings involves wound assessment, infection control, and knowledge of aseptic techniques, tasks that fall under the purview of a PN or RN.