A nurse is caring for a client who has partial-thickness burns on 50% of his body and is receiving total parenteral nutrition. The nurse should actively monitor the client for which of the following?

The nurse should perform neurovascular checks of the affected extremity every 2 hours to monitor for any signs of compartment syndrome or impaired circulation. It is important to assess for the five Ps: pain, pulse, pallor, paresthesia, and paralysis. Using a hair dryer to relieve itching can cause burns and is not a recommended intervention. Positioning the fractured arm below the level of the client's heart can increase swelling and exacerbate pain. Immobilizing the client's fingers using a hand splint is not indicated unless there is a finger fracture or injury.

Choice A (Use a hair dryer to blow hot air into the cast to relieve itching) is not an answer because it can cause burns and is not a recommended intervention.

Choice C (Position the fractured arm below the level of the client's heart) is not an answer because it can increase swelling and exacerbate pain.

Choice D (Immobilize the client's fingers using a hand splint) is not an answer because it is not indicated unless there is a finger fracture or injury.

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.