Pituitary Disorders USMLE Step 1 Practice Question
A 52 year old man comes to the office because his wedding ring and shoes no longer fit. He also reports headaches, increased sweating, and hand numbness at night. Examination shows prognathism, frontal bossing, and enlarged hands. Which of the following is the best initial laboratory test to confirm the suspected diagnosis?
Answer choices
- AUrinary catecholamine metabolites
- BLow dose dexamethasone suppression test
- CSerum insulin like growth factor 1 levelCorrect answer
- DSerum prolactin level
- ERandom growth hormone level
- FOral glucose tolerance test with GH suppression
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