Comprehensive Nursing Pharmacology Q 247
Jake has psoriasis of the scalp. The physician has ordered Zetar shampoo. You would advise the client to:
A. Avoid sun exposure to the scalp.
B. Use the shampoo PRN.
C. Report pruritus.
D. None of the above.
Correct Answer: A. Avoid sun exposure to the scalp.
One of the side effects of Zetar shampoo is photosensitivity. This medication makes a person more sensitive to the sun. Be sure to completely wash off the medication before going out into the sun. Avoid sun exposure, tanning booths, and sunlamps for at least 24 hours after using this medication unless the doctor directs otherwise. Other medications may also increase sun sensitivity.
Option B: Use this product usually twice a week or as directed by the doctor. Dosage is based on the medical condition, the product type/brand, and response to treatment. Do not use large amounts of this medication, use it more often, or use it for a longer period than directed. The condition will not clear faster, but the chance for side effects may be increased.
Option C: Skin/scalp irritation or staining of skin/hair (especially in patients with blonde, bleached, dyed, or gray hair) may occur. If skin irritation develops or worsens, stop using this product and tell the doctor or pharmacist promptly.
Option D: This medication is used on the hair/scalp to treat dandruff and other scaly, itchy skin conditions (psoriasis or seborrheic dermatitis). Coal tar belongs to a class of drugs known as keratoplastics. It works by causing the skin to shed dead cells from its top layer and slow down the growth of skin cells. This effect decreases scaling and dryness. Coal tar can also decrease itchiness from these skin conditions.