Final answer:
The nurse should monitor the client for nausea, drowsiness, and orthostatic hypotension.
Step-by-step explanation:
The nurse should monitor the client for the following side effects of carbidopa/levodopa:
- Nausea: Some patients may experience nausea as a side effect of the medication.
- Drowsiness: Carbidopa/levodopa can cause drowsiness in some individuals.
- Orthostatic hypotension: This medication can cause a sudden drop in blood pressure when changing positions, leading to orthostatic hypotension.