Correct Answer: C

Rationale: Elevating the head of the bed to 45 degrees is the priority action before administering an enteral feeding through an NG tube. This position helps prevent aspiration by promoting proper flow and digestion of the feeding. Checking the residual volume, flushing the tube, and warming the formula are important steps but come after ensuring the client is in the correct position to minimize the risk of complications.

Correct Answer: A

Rationale: In osteoarthritis, joint pain that improves with rest is a common characteristic due to the relief obtained by reducing weight-bearing on the affected joint. Joint stiffness that improves with movement is more indicative of rheumatoid arthritis, not osteoarthritis. Red, warm joints are typically seen in inflammatory arthritis conditions like rheumatoid arthritis, while systemic inflammation is not a primary feature of osteoarthritis.

Correct Answer: B

Rationale: Administering flumazenil is the priority to reverse the effects of diazepam overdose. Monitoring the IV site for thrombophlebitis (choice A) is important but not the next immediate action. Evaluating the client for further suicidal behavior (choice C) is important but not the priority at this moment. Initiating seizure precautions (choice D) is not the priority action in this scenario.

Correct Answer: A

Rationale: During disaster triage, clients with severe injuries that are immediately life-threatening and have a high likelihood of mortality without intervention are assigned the highest priority. A below-the-knee amputation falls into this category as it indicates a critical injury that requires immediate attention to prevent further complications or loss of life. Fractured tibia, a 95% full-thickness body burn, and a 10 cm laceration to the forearm, while serious, do not pose the same level of immediate life-threatening risk as a below-the-knee amputation in the context of disaster triage.

Correct Answer: D

Rationale: The correct answer is D: a low WBC count. Clozapine can suppress bone marrow function, leading to a decreased white blood cell count. This condition, known as agranulocytosis, increases the risk of severe infections. Monitoring WBC counts is essential during clozapine therapy. Choices A, B, and C are within normal ranges and are not contraindications for administering clozapine.