Correct Answer: C

Rationale: The correct answer is to avoid alcohol consumption while taking metformin. Alcohol can increase the risk of lactic acidosis when combined with metformin. Choice A is incorrect because metformin is usually recommended to be taken with meals to reduce GI upset. Choice B is important but not the priority; muscle pain is more commonly associated with other diabetes medications. Choice D is incorrect because metformin typically does not cause hypoglycemia but rather helps control blood sugar levels in type 2 diabetes.

Correct Answer: D

Rationale: The correct action for the nurse to implement while awaiting surgery for a client with muscle spasms due to a broken femur is to encourage oral fluid intake to relieve muscle tension. Dehydration can exacerbate muscle spasms, so increasing fluid intake can help alleviate them. Checking electrolyte levels may not directly address muscle spasms in this situation. Administering a muscle relaxant should be based on a healthcare provider's prescription, and traction weight adjustments should only be made by the provider overseeing the client's care.

Correct Answer: C

Rationale: The correct answer is to avoid alcohol consumption while taking metformin. Alcohol can increase the risk of lactic acidosis when combined with metformin. Choice A is incorrect because metformin is usually recommended to be taken with meals to reduce GI upset. Choice B is important but not the priority; muscle pain is more commonly associated with other diabetes medications. Choice D is incorrect because metformin typically does not cause hypoglycemia but rather helps control blood sugar levels in type 2 diabetes.

Correct Answer: B

Rationale: The activated partial thromboplastin time (aPTT) is the most accurate measure of heparin's therapeutic effect. Heparin increases the time it takes for blood to clot, and the aPTT helps determine whether the dose is within the desired range for anticoagulation therapy. Monitoring the INR, hemoglobin, or platelet count is not specific to assessing therapeutic heparin levels and may not reflect the anticoagulant effect of heparin.

Correct Answer: B

Rationale: Playing a board game with the client is an effective way to establish rapport in a relaxed setting, allowing the client to open up about stressors. This activity promotes coping by creating a safe and engaging environment for the client to express their feelings. Choices A, C, and D may not be suitable initially as they involve more formal or intrusive approaches that may not be suitable for building rapport with a client experiencing emotional distress.