system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 42-year-old woman with hypertension comes to the physician because of a 2-month history of persistent reddening of her face, daytime fatigue, and difficulty concentrating. She has fallen asleep multiple times during important meetings. Her only medication is lisinopril. She is 170 cm (5 ft 7 in) tall and weighs 88 kg (194 lb); BMI is 30 kg/m2. Her blood pressure is 145/85 mm Hg. Physical examination shows erythema of the face that is especially pronounced around the cheeks, nose, and ears. Serum glucose concentration is 120 mg/dL. Which of the following is the most likely cause of this patient's facial discoloration?
assistant
Increased erythropoietin production