Correct Answer: A

Rationale: The correct instruction for a client prescribed Rifampin is to expect orange discoloration of urine. Rifampin is known to cause harmless discoloration of bodily fluids, including urine, which is a common side effect of this medication. It is important for the nurse to educate the client about this expected side effect to prevent unnecessary concern or discontinuation of the medication.

Correct Answer: D

Rationale: Metformin has dual actions by decreasing hepatic glucose production and intestinal glucose absorption, which helps in reducing blood glucose levels, and it also increases sensitivity to insulin, aiding in its proper utilization within the body. Therefore, the correct answer is D, as metformin performs both of these actions.

Correct Answer: B

Rationale: Hydrochlorothiazide, a diuretic, can cause hypokalemia by promoting potassium excretion. Increasing potassium-rich foods, such as bananas or oranges, can help counteract this effect and maintain electrolyte balance.

Correct Answer: B

Rationale: Clients taking warfarin should report any signs of bleeding to their healthcare provider as it can indicate excessive anticoagulation. Bleeding can be a serious side effect of warfarin and should be promptly addressed by a healthcare provider to prevent complications.

Correct Answer: A

Rationale: Correct. Aluminum hydroxide is known to cause constipation as a common side effect. Instructing the client about this potential adverse effect is important for their awareness and management. Monitoring and managing constipation can help improve the client's comfort and overall treatment experience.