This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Serum testosterone levels exceeding 200ng /dL is suggestive of 
Select and explain. 
A. PCOD, B. Adrenal tumor, C. Metabolic syndrome, D. Ovarian Atresia
B: Adrenal tumor
Answer: B: Adrenal tumor 
Explanation: Very high testosterone levels are suggestive of ovarian or adrenal androgen-producing tumor.