Correct Answer: C

Rationale: The correct answer is C, Clopidogrel. Clopidogrel is an antiplatelet medication that increases the risk of bleeding when taken with warfarin. Acetaminophen (choice A) and metoprolol (choice D) do not have significant interactions with warfarin. Ibuprofen (choice B) is an NSAID that can also increase the risk of bleeding when taken with warfarin, but clopidogrel is a more significant contraindication due to its antiplatelet effects. Therefore, healthcare professionals should be cautious when combining warfarin with clopidogrel due to the increased risk of bleeding compared to other options.

Correct Answer: D

Rationale: Administering the medication is appropriate for a stable lithium level of 0.8 mEq/L. A level of 0.8 mEq/L falls within the therapeutic range for lithium, indicating that the client is receiving an adequate dose to maintain therapeutic effects. Withholding the next dose, increasing the dosage, or discontinuing the medication would not be indicated at this lithium level as it is within the desired range for therapeutic benefit. Therefore, the correct action would be to continue administering the medication to ensure the client maintains the therapeutic level of lithium.

Correct Answer: A

Rationale: The correct answer is A. Sucralfate is most effective when taken 1 hour before meals to protect the stomach lining. Option B is incorrect because sucralfate should not be taken after meals. Option C is incorrect because sucralfate is typically taken on a regular schedule, not just when symptoms occur. Option D is incorrect because sucralfate should not be taken with milk, as it can interfere with its effectiveness.

Correct Answer: C

Rationale: The correct action for the nurse to take is to limit IV exposure to light. Nitroprusside is light-sensitive, and exposure to light can lead to its degradation, potentially reducing its efficacy in treating severe hypertension. Keeping calcium gluconate at the bedside (Choice A) is not directly related to managing nitroprusside infusion. While monitoring blood pressure every 2 hours (Choice B) is important in managing hypertension, it is not the immediate action required to ensure medication efficacy. Attaching an inline filter to the IV tubing (Choice D) may help filter particles but does not address the critical concern of light sensitivity associated with nitroprusside administration.

Correct Answer: A

Rationale: The correct answer is to obtain the specimen immediately upon the client waking up. Collecting sputum early in the morning provides the best sample for tuberculosis testing. Option B is incorrect because waiting a day can decrease the accuracy of the specimen. Option C is incorrect as it does not specify the optimal timing for specimen collection. Option D is incorrect as sterile gloves should be worn for infection control but do not specifically relate to the timing of specimen collection.