Correct Answer: B

Rationale: The correct answer is B: Focus on the patient's presenting situation. This is the first step in the problem-oriented approach as it helps the nurse understand the immediate issues and prioritize data collection. By focusing on the presenting situation, the nurse can gather relevant information efficiently. A: Completing questions in chronological order may not address the current problem effectively. C: Making accurate interpretations of the data comes after data collection, not as the first step. D: Conducting an observational overview is important but typically follows focusing on the presenting situation to guide what observations are necessary.

Correct Answer: B

Rationale: The correct answer is B because monitoring the site and progress of the infusion every hour is crucial to prevent complications like infiltration or infection in clients with hypertension. Choice A is incorrect as checking BP every hour is excessive. Choice C is incorrect as daily monitoring may not detect issues promptly. Choice D is incorrect as pulse rate monitoring is not directly related to IV fluid administration in this context. Monitoring the site and progress hourly ensures timely intervention if any issues arise.

Correct Answer: D

Rationale: The correct answer is D: “You must avoid hyperextending your neck after surgery.” This is because hyperextending the neck can put excessive strain on the surgical site, leading to potential complications such as bleeding or injury to the incision. Keeping the neck in a neutral position helps promote healing and reduces the risk of complications. A: “The head of your bed must remain flat for 24 hours after surgery.” - Incorrect. Elevating the head of the bed can help reduce swelling and promote drainage after thyroidectomy. B: “You should avoid deep breathing and coughing after surgery.” - Incorrect. Deep breathing and coughing are important to prevent respiratory complications such as pneumonia. C: “You won’t be able to swallow for the first day or two.” - Incorrect. Swallowing may be difficult initially but should improve gradually after surgery.

Correct Answer: A

Rationale: The correct answer is A: Ambulating a patient. Direct care interventions involve hands-on activities directly impacting patient outcomes. Ambulating a patient is a direct care intervention as it involves physically assisting the patient to move, promoting circulation, preventing complications, and improving overall well-being. Inserting a feeding tube (B) and performing resuscitation (C) are also direct care interventions as they involve immediate patient care actions. Documenting wound care (D) is not a direct care intervention as it involves recording information about a care activity rather than physically performing the care itself.

Correct Answer: A

Rationale: The correct answer is A because a positive diagnosis for HIV infection is confirmed through laboratory testing, specifically the ELISA and Western blot tests. These tests detect the presence of HIV antibodies in the blood, providing definitive evidence of the infection. Choice B is incorrect as weight loss and fever are symptoms but not diagnostic criteria. Choice C is incorrect as opportunistic infections are a consequence of HIV, not the diagnostic criteria. Choice D is incomplete and irrelevant. In summary, the key to diagnosing HIV is through positive laboratory tests, not just based on symptoms or associated infections.