The nurse caring for a client reviews the medical record and determines the client is at risk for developing a potassium deficit because of which situation?

The correct answer is choice A: Elevate the head of the client's bed for 1 hr after the feeding. This is because elevating the head of the client's bed to at least 30 degrees can help prevent aspiration and gastric reflux. Choice B is incorrect because administering the feeding solution at a cold temperature can cause discomfort and diarrhea. Choice C is incorrect because rotating the jejunostomy tube once per day can cause irritation and trauma to the stoma site. Choice D is incorrect because flushing the tube with 90 mL of sterile water before and after the feeding is not necessary as long as the tube is adequately flushed before and after each feeding.

Explanation for why the other choices are not answers: B – Administering the feeding solution at a cold temperature can cause discomfort and diarrhea, so it should not be done. C – Rotating the jejunostomy tube once per day can cause irritation and trauma to the stoma site, so this is not the correct action. D – Flushing the tube with 90 mL of sterile water before and after the feeding is unnecessary to do as long as the tube is adequately flushed before and after each feeding. Thus, this is not the correct answer.

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.