This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of pituitary gland, Subject name: Medicine
[{'content': 'Which of these tests is the first to be performed in a patient with the following presentation? \nSelect and explain. \nA. ABG sampling, B. IGF- 1 levels, C. RA factor, D. HLA- B27 levels', 'role': 'user'}, {'content': 'Answer: B \nExplanation: IMAGE : SPADE LIKE DEFORMITY OF HANDS: Seen in ACROMEGALY Screening test done: IGF -1 IOC: Glucose challenge test (GCT) Treatment: Surgery (Transphenoidal Resection) If recurrence seen: PEGVISOMANT', 'role': 'assistant'}]