The nurse is preparing a patient with a history of psoriasis for ultraviolet light therapy with psoralen (PUVA). What is important for the nurse to teach the patient prior to initiating therapy?
a. "You will need to return in 1 week for blood tests for liver function."
b. "It is expected that you will experience pain and burning at the treatment sites."
c. "You will need to take your psoralen tablets for 1 week following the treatment."
d. "Plan to wear dark glasses during the treatment, and for the whole day following treatment."
ANS: D
Oral psoralen tablets (a photosensitizing agent) followed by exposure to UVA is called PUVA therapy. PUVA therapy temporarily inhibits DNA synthesis, which is antimitotic. Because psoralen is a photosensitizing agent, the patient must not only wear dark glasses during the treatment period, but also for the entire day after a treatment. A. B. The long-term safety of PUVA therapy is still unknown. Possible side effects include increased skin carcinomas, premature skin aging, and actinic keratosis C. The medication does not need to be taken for 1 week following the treatment.
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