A patient is taking amantadine to treat a viral infection. The patient calls the primary care NP to report having blurred vision. The NP should:
a. question the patient about suicidal ideation.
b. tell the patient to stop the medication immediately.
c. counsel the patient to avoid driving until this subsides.
d. tell the patient to come to the clinic for an electroencephalogram.
C
Blurred vision or impaired mental acuity may result from the use of amantadine. Patients with a history of psychiatric illness may develop suicidal ideation, but this is not associated with blurred vision. It is not necessary to stop the medication. Patients with a history of seizures may have seizures with this drug, but this is not associated with blurred vision.
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