The nurse is preparing to ambulate a client with a diagnosis of Parkinson's disease who has recently been prescribed levodopa. Which information is most important for the nurse to assess before ambulating the client?

Clients diagnosed with Parkinson's disease are at risk for postural (orthostatic) hypotension from the disease. This problem is exacerbated with the introduction of levodopa, which can also cause postural hypotension. Although knowledge of the client's risk for falls and the client's use of assistive devices are helpful, it is not the most important piece of assessment data, based on the wording of this question. Clients with Parkinson's disease generally have resting, not intention, tremors.