Soru

A 36-year-old woman presents to the clinic with progressive weight gain, fatigue, and easy bruising over the past 8 months. She also reports irregular menstrual periods and new-onset facial hair growth. Blood pressure is 158/98 mmHg, pulse is 82/min, and BMI is 34 kg/m². Physical examination reveals facial plethora, prominent dorsocervical and supraclavicular fat pads, wide purple abdominal striae, and significant weakness when rising from a seated position. A baseline metabolic panel demonstrates a fasting blood glucose of 145 mg/dL and a serum potassium of 3.3 mEq/L. The physician suspects a specific endocrine disorder. Assuming positive or equivocal findings at each step that require further investigation, arrange the following diagnostic tests in the most appropriate chronological order to establish the diagnosis and definitive etiology, from initial screening to final preoperative localization.