Correct Answer: B

Rationale: In cases of benzodiazepine overdose, such as diazepam ingestion, flumazenil is the antidote. Therefore, the priority action for the nurse is to administer flumazenil to the client. Monitoring the IV site for thrombophlebitis (Choice A) is important but not the immediate priority. Evaluating the client for further suicidal behavior (Choice C) is important but not the next immediate action. Initiating seizure precautions (Choice D) is not the priority as the client's airway has already been secured.

Correct Answer: A

Rationale: The correct answer is A: INR. The INR (International Normalized Ratio) is the laboratory test used to monitor the therapeutic response of warfarin. It helps ensure that the client's clotting time is within the desired range to prevent complications such as excessive bleeding or clotting. Choice B, aPTT (Activated Partial Thromboplastin Time), is not typically used to monitor warfarin therapy but rather for assessing heparin therapy. Choice C, Platelet count, assesses the number of platelets in the blood and is not specifically used to monitor warfarin therapy. Choice D, Hemoglobin A1C, is a test used to monitor long-term blood sugar control in diabetic patients and is not relevant to monitoring warfarin therapy.

Correct Answer: D

Rationale: Ensuring that the client's identification band matches the number on the blood unit is crucial for correct identification. This action helps prevent errors by confirming that the blood product is indeed intended for the specific client. Matching the client's blood type with type and cross-match specimens (Choice A) is important for compatibility but does not directly verify the client's identity. Confirming the provider's prescription (Choice B) is relevant but does not ensure the correct identification of the client. Asking the client to state their blood type and confirm the date of their last blood donation (Choice C) relies on the client's memory and verbal confirmation, which may not be accurate or reliable for identification purposes.

Correct Answer: C

Rationale: The correct answer is C. Drinking at least 2 liters of water daily is crucial for clients taking lithium to prevent dehydration and lithium toxicity. Lithium is a salt, so it's important for clients to maintain adequate hydration. Option A is incorrect because lithium does not interact with tyramine-containing foods. Option B is incorrect because increasing salt intake is not necessary and can actually exacerbate lithium toxicity. Option D is incorrect because avoiding caffeinated beverages is not a priority teaching point for clients taking lithium.

Correct Answer: B

Rationale: The correct intervention for a client with acute diverticulitis is to initiate a low-fiber diet. A low-fiber diet helps manage acute diverticulitis by reducing irritation to the colon, allowing it to heal. Administering a cleansing enema (Choice A) can worsen diverticulitis by increasing pressure within the colon. Applying moist heat to the abdomen (Choice C) may provide comfort but does not address the underlying cause. Providing a clear liquid diet (Choice D) is not ideal for diverticulitis management as it lacks the necessary nutrients for healing and may not provide enough bulk to prevent further irritation.