The nurse is assessing a patient with psoriasis. The nurse would expect:

Lesions on the extensor surfaces.
Red and scaly lesions.


• Psoriasis is a chronic inflammatory disease caused by hypersensitivity of the immune system.

• Lesions are red with white scales and appear on the extensor surfaces of joints (elbows and knees), not the flexor surfaces of joints (antecubital and popliteal).

• Skin and nail thickening, not thinning, is common.

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