A patient is being treated with interferon beta-1a (Avonex) for relapsing-remitting MS. The patient calls the clinic to report headache, fever, chills, and muscle aches after administering a dose. What will the nurse recommend?
a. Acetaminophen or ibuprofen
b. Asking the provider to order a complete blood count (CBC)
c. Coming to the clinic for evaluation for leukoencephalopathy
d. Discontinuing the drug immediately
ANS: A
Patients treated with interferon beta can experience flulike reactions that diminish over time. Acetaminophen or ibuprofen may be used to treat symptoms. A CBC is not indicated. Leukoencephalopathy is a side effect of natalizumab, not interferon beta. It is not necessary to discontinue the drug.
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