A Patient Is Scheduled for an Electroencephalogram

A patient is scheduled for an electroencephalogram. What preprocedure information does the nurse emphasize with this patient?

A) Avoid washing hair for 2 days before the test.
B) Avoid caffeine for 8 to 12 hours before the test.
C) Restrict the intake of fluids for 6 hours after the test.
D) Apply minimal products to the hair the morning of the test.