Psoriatic arthritis: a guide for dermatology nurses.

Psoriatic arthritis (PsA) affects people in the prime of life, causing functional impairment and diminished quality of life. Etanercept, the first FDA-approved therapy, and other immunobiologics, offer hope for favorable long-term outcomes. It is imperative that dermatology nurses learn more about the basic immunology of psoriasis and PsA and the role of immunomodulation in their treatments.