A Patient Has Been Taking Griseofulvin for 4 Weeks to Treat

A patient has been taking griseofulvin for 4 weeks to treat a tineal capitis infection.The primary care NP notes improvement but not complete cure.The NP should:

A) obtain a culture and change to ketoconazole.
B) add a topical antifungal cream and refill the griseofulvin prescription for 2 weeks.
C) renew the prescription after obtaining renal, liver, and hematopoietic tests.
D) prescribe griseofulvin for 4 more weeks and then re-evaluate the infection.