A nurse is caring for a client who has been receiving epoetin alfa in preparation for a hip arthroplasty. Which of the following findings indicate that the medication has been effective?

The correct answer is: D.

Choice A reason: Asking a patient to rate their pain on a scale from 0 to 10 is a common method to assess the intensity of pain, not the quality. Zero indicates no pain, and ten represents the most severe pain imaginable. This scale is quantitative and helps in tracking the effectiveness of pain management over time.

Choice B reason: Inquiring if the pain is the same as it has been is a question that assesses the consistency or changes in the patient’s pain over time. It does not provide information about the quality of the pain but rather its course or any variations in the experience of pain.

Choice C reason: Asking whether the patient has any pain this morning is a question that determines the presence or absence of pain at a particular time. It does not elicit details about the nature or characteristics of the pain, which are essential to understanding its quality.

Choice D reason: Asking “What does your pain feel like?” is a qualitative question that aims to describe the characteristics of the pain, such as aching, stabbing, or burning. This information is crucial for diagnosing the cause of pain and tailoring appropriate treatment strategies. It directly addresses the quality of the pain, which is the focus of the nurse’s inquiry.

The correct answer is choice B: Store opened insulin vials at room temperature for up to 4 weeks.

Choice B rationale: Opened insulin vials can be stored at room temperature (59°F to 86°F or 15°C to 30°C) for up to 4 weeks. After this period, the insulin may lose potency, and a new vial should be used.

Choice A rationale: Regular insulin is short-acting, and its peak effect occurs 2 to 3 hours after administration. Eating a snack 6 hours after insulin administration may not be necessary as the insulin would have already reached its peak effect, and blood glucose levels should be monitored accordingly.

Choice C rationale: Warming the insulin vial to dissolve crystals is not recommended. Insulin should be inspected before use, and if crystals or clumps are present, it should be discarded as this could indicate that the insulin has lost its effectiveness.

Choice D rationale: Unopened insulin vials should be stored in the refrigerator (36°F to 46°F or 2°C to 8°C) and should not be frozen. Freezing can cause insulin to lose potency or become ineffective. Once opened, insulin vials can be stored at room temperature for up to 4 weeks, as mentioned in choice B.