A 4-year-old boy is brought to the pediatrician by his mother who is concerned about the presence of small axillary hairs. Blood pressure is slightly elevated. Serum studies are as follows:
Na+: 141 mEq/L
K+: 3.8 mEq/L
HCO3–: 26 mEq/L
Glucose: 76 mg/dL
DHEA-S: Elevated
Which of the following is most likely deficient in this patient?
11β-hydroxylase
17α-hydroxylase
21-hydroxylase
ACTH
Desmolase
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Cut-to-the-chase Answer (1:39):
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HY USMLE Answer (7:16):
