Correct Answer: B

Rationale: Verapamil, a calcium-channel blocker, can increase digoxin levels, leading to Digoxin toxicity. When these medications are used together, the client is at an increased risk. The healthcare professional should consider adjusting the digoxin dosage and closely monitor the client's digoxin levels to prevent toxicity.

Correct Answer: D

Rationale: When administering Filgrastim, only one dose should be withdrawn from the vial, and the vial should then be discarded. This medication should not be shaken but gently inverted to mix it before withdrawing the appropriate dose. It is important to follow these guidelines to ensure the medication's efficacy and prevent contamination or errors in dosing. Refrigeration is not required for Filgrastim; it should be stored at room temperature until just before administration.

Correct Answer: B

Rationale: Clopidogrel is an antiplatelet medication that works by preventing blood clots. Monitoring the patient's platelet count is essential because a decrease in platelet count can increase the risk of bleeding. By assessing the platelet count, the healthcare professional can detect any potential adverse effects related to the medication and take appropriate actions to prevent complications.

Correct Answer: B

Rationale: Metoclopramide, a dopamine antagonist, is indicated for treating nausea and increasing gastric motility. In the context of diabetic gastroparesis, it can alleviate bloating and nausea by enhancing gastric emptying.

Correct Answer: C

Rationale: The correct answer is C, Warfarin. Aspirin increases the effect of anticoagulants like warfarin by inhibiting platelet aggregation, leading to an increased risk of bleeding. Therefore, the use of aspirin is generally contraindicated for clients taking warfarin.