A patient has been diagnosed with Parkinson's disease (PD) and begins treatment with levodopa/carbidopa [Sinemet]. After several months of therapy, the patient reports no change in symptoms. The nurse will expect the provider to:
a. add a dopamine agonist.
b. discuss the "on-off" phenomenon.
c. increase the dose of Sinemet.
d. re-evaluate the diagnosis.
D
Patients beginning therapy with levodopa/carbidopa should expect therapeutic effects to occur after several months of treatment. Levodopa is so effective that a diagnosis of PD should be questioned if the patient fails to respond in this time frame. Adding a dopamine agonist is not indicated. The "on-off" phenomenon occurs when therapeutic effects are present. Increasing the dose of levodopa/carbidopa is not indicated.
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