A nurse is reinforcing teaching with a client who takes lithium carbonate for bipolar disorder.
For which of the following findings should the nurse monitor as an adverse effect of lithium carbonate?.

Choice A rationale:

Baclofen is a muscle relaxant and antispastic agent. It can cause drowsiness and affect the ability to drive or operate machinery. Therefore, it’s advisable to avoid driving until the medication’s effects are evident.

Choice B rationale:

Headache is not a reason to stop taking baclofen. If a headache occurs, the client should consult with their healthcare provider for appropriate management.

Choice C rationale:

Diarrhea is not a common adverse effect of baclofen. More common side effects include drowsiness, dizziness, weakness, and fatigue.

Choice D rationale:

Baclofen can be taken with or without food. Taking it on an empty stomach is not necessary and may increase the risk of stomach upset.

So, the correct answer is A.

Choice A rationale:

The client should indeed notify their provider before taking any other medications, as phenytoin can interact with many other drugs. This statement does not indicate a need for further teaching.

Choice B rationale:

Regular dental appointments are important as phenytoin can cause gum hyperplasia. This statement does not indicate a need for further teaching.

Choice C rationale:

This statement indicates a misunderstanding. Phenytoin is used to control seizures, not cure them. The client should not stop taking the medication when their seizures stop.

Choice D rationale:

Phenytoin can be taken with or without food, but it should be taken consistently in the same manner. This statement does not indicate a need for further teaching.

So, the correct answer is C, after analyzing all choices.