A nurse is administering naloxone to a client who has developed an adverse reaction to morphine.
The nurse should identify which of the following findings is a therapeutic effect of naloxone?

This is because swelling of the feet can be a sign of lithium toxicity, which is a serious condition that can occur when the level of lithium in the blood is too high. Lithium toxicity can cause confusion, irregular heartbeat, muscle weakness, and kidney problems. Therefore, the client should report any signs of lithium toxicity to their provider as soon as possible.

Choice A is wrong because limiting foods containing tyramine is not necessary for clients taking lithium. Tyramine is a substance found in some foods that can interact with certain antidepressants called monoamine oxidase inhibitors (MAOIs), but not with lithium.

Choice B is wrong because decreasing the daily sodium intake can actually increase the risk of lithium toxicity.

Sodium helps to regulate the amount of lithium in the body, so if the sodium level is low, the lithium level can rise too high.

The client should maintain a normal sodium intake and drink enough fluids while taking lithium.

Choice C is wrong because taking this medication 2 hours before a meal is not required for clients taking lithium.

Lithium can be taken with or without food, but it should be taken at the same time each day to keep a steady level in the blood.

Taking lithium 2 hours before a meal may cause stomach upset, which is a common side effect of lithium.

A therapeutic effect of naloxone is the reversal of opioid-induced respiratory depression, which is one of the most dangerous complications of opioid overdose. Naloxone works by binding to opioid receptors, displacing opioids, and restoring normal respiratory drive. An increase in respiratory rate after administration indicates that naloxone is effective.

Choice A is wrong because decreased blood pressure is not a therapeutic effect of naloxone.

In fact, naloxone can cause hypertension (high blood pressure) as a side effect due to opioid withdrawal.

Choice B is wrong because decreased nausea is not a therapeutic effect of naloxone. Nausea is a common side effect of morphine, but naloxone does not affect it directly.

Naloxone can actually cause nausea and vomiting as a side effect due to opioid withdrawal.

Choice D is wrong because increased pain relief is not a therapeutic effect of naloxone.

Pain relief is a desired effect of morphine, but naloxone antagonizes it by blocking the opioid receptors.

Naloxone can cause pain and discomfort as a side effect due to opioid withdrawal.