Correct Answer: C

Rationale: The correct answer is C: Leafy green vegetables. Leafy green vegetables are rich in calcium, which is essential for bone health and can help prevent bone loss in clients with osteoporosis. Carrots (choice A), while nutritious, are not as high in calcium as leafy green vegetables. Milk (choice B) is also a good source of calcium but may not be suitable for clients who are lactose intolerant. Bananas (choice D) are a healthy fruit choice but do not provide significant amounts of calcium needed for osteoporosis.

Correct Answer: A

Rationale: The correct answer is to monitor the INR (International Normalized Ratio) for a patient receiving warfarin therapy. INR monitoring is crucial to assess the effectiveness of warfarin in preventing blood clots while minimizing the risk of bleeding. Monitoring sodium levels (choice B), potassium levels (choice C), or platelet count (choice D) is not specifically essential for patients on warfarin therapy and does not provide direct information on the drug's anticoagulant effects.

Correct Answer: C

Rationale: The correct answer is C. A heart rate of 88/min is a normal finding; therefore, it does not require immediate reporting to the provider. The respiratory rate of 20/min, blood pressure of 118/76 mm Hg, and oxygen saturation of 94% are also within normal ranges and do not indicate any immediate concerns. However, a serum potassium level of 3.0 mEq/L indicates hypokalemia, which can be a serious issue and should be reported to the provider for further evaluation and management.

Correct Answer: B

Rationale: The correct answer is B: 'Avoid consuming alcohol while taking this medication.' Clients taking metformin should avoid alcohol as it increases the risk of lactic acidosis. Choice A is incorrect because metformin is usually taken with meals to reduce gastrointestinal side effects. Choice C is incorrect as metformin is typically taken with meals, not at bedtime. Choice D is incorrect because muscle pain is not a common side effect of metformin.

Correct Answer: A

Rationale: The nurse should document the time the medication was given in the client's medical record when administering an incorrect dose. This information is crucial for tracking the sequence of events leading to the error. Choice B, the client's response to the medication, is important for monitoring the client's condition post-administration but may not be directly linked to the incident report. Choice C, documenting the dose that was administered, is relevant but does not provide insights into the timing of events. Choice D, detailing the reason for the error, should be included in the incident report but may not need to be documented in the client's medical record.