Review Question - QID 109137

A 25-year-old woman with no prior medical history presents with complaints of a new skin rash. She was in her usual state of health until one month ago when she began developing an itchy rash on her lower abdomen. The patient works as a fitness instructor. Her family history is notable for a father with psoriasis and a brother with atopic dermatitis. Physical exam is notable for an otherwise healthy-appearing female and Figure A on skin exam. Her temperature is 98.9°F (37.2° C), pulse is 80/min, blood pressure is 120/82 mmHg, respirations are 10/min, and O2 saturation is 99% on room air. Her laboratory results are as follows:
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