A 17 year old boy is referred with delayed puberty. He has noticed that he is taller than his classmates. On clinical examination he is found to have sparse facial and body hair as well as small pre-pubertalsized testes and penis. Blood tests reveal testosterone 7.5 nmol/L (216 ng/dL), FSH 12 IU/L (2.8 μg/L), LH 11 IU/L (1.2 µg/L). What is the most appropriate next test?
1June 18, 2022 8.9K 6
