Primary adrenal insufficiency Quiz: Ace Your Exams
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A 56-year-old female presents to her endocrinology PA for follow-up testing after an MRI demonstrated a pituitary lesion. The patient initially presented with several months of fatigue, weight loss, and chronic headaches. During this visit, the patient has labs drawn, and the results are demonstrated below:
The patient is administered a metyrapone stimulation test. Which of the following accurately describes the mechanism of metyrapone?
| Laboratory Value | Result |
| Cortisol 8AM | 12 mg/dL (Reference range: 5-25 mg/dL) |
| Random Adrenocorticotropic hormone (ACTH) | 2 pg/ml (Reference range: 10-60 pg/ml) |
The patient is administered a metyrapone stimulation test. Which of the following accurately describes the mechanism of metyrapone?
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