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Review Question - QID 210549

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QID 210549 (Type "210549" in App Search)
A 45-year-old man presents to the emergency department with concern for a rash. The patient states he has an odd rash on his legs that has not been improving. The patient has a past medical history of a recent myocardial infarction which was appropriately treated, diabetes, hypertension, and dyslipidemia. He has a family history of prostate cancer, Parkinson disease, and depression. His temperature is 98.5°F (36.9°C), blood pressure is 177/108 mmHg, pulse is 90/min, respirations are 14/min, and oxygen saturation is 98% on room air. A physical exam is notable for the finding in Figure A. Laboratory values are ordered as seen below.

Serum:
Na+: 139 mEq/L
Cl-: 100 mEq/L
K+: 4.3 mEq/L
HCO3-: 25 mEq/L
BUN: 34 mg/dL
Glucose: 177 mg/dL
Creatinine: 2.2 mg/dL
Ca2+: 10.2 mg/dL

Which of the following is the most likely diagnosis?
  • A
  • A