Review Question - QID 212358

A 45-year-old woman presents to her primary care physician complaining of weight gain. She states that for the past few months, she has gained 10 pounds, especially around her abdomen. She says that this is despite going to kickboxing classes 5 days a week. She reports mild fatigue and muscle soreness, which she attributes to her exercise classes. She also complains of dry skin and hair but feels that this might be due to showering twice a day. Her medical history is significant for major depressive disorder. She takes citalopram and a multivitamin. She smokes a half pack of cigarettes a day. She drinks 1 glass of red wine every night after dinner, and 3-4 drinks mixed with hard liquor on the weekend with friends. Her temperature is 98°F (36.7°C), blood pressure is 122/75, pulse is 65/min, and respirations are 12/min. Her physical examination is unremarkable, except for xerosis. Labs are obtained, as shown below:

Serum:
Na+: 130 mEq/L
K+: 4.1 mEq/L
Cl-: 101 mEq/L
BUN: 16 mg/dL
Glucose: 125 mg/dL
Creatinine: 0.9 mg/dL
Aspartate aminotransferase (AST): 56 U/L
Alanine aminotransferase (ALT): 70 U/L
Creatine kinase (CK): 223 U/L (normal 22 to 198 U/L)

Hemoglobin A1c: 5.3
Total cholesterol: 264 mg/dL (normal < 200 mg/dL)
Low-density lipoprotein (LDL) cholesterol: 117 mg/dL (normal < 100 mg/dL)
High-density lipoprotein (HDL) cholesterol: 48 (normal > 50 mg/dL)
Triglycerides: 163 mg/dL (normal < 150 mg/dL)

Which of the following is the most appropriate next step in management?