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The lecture Reproductive Case: 6-day-old Girl with Vomiting and Poor Feeding by Michael Lazarus, MD is from the course Reproductive Endocrine Disorders.
What is the most likely cause of the pathology described below? A 6-day-old newborn girl presents with excessive vomiting and poor feeding. Her mother did not have any antenatal care. Vital signs: Temperature of 36.8°C (98.2°F), blood pressure of 50/30 mm Hg, and pulse of 150 beats/min. Physical examination: Signs of dehydration and shock, ambiguous genitalia with fused labia and enlarged clitoris. Laboratory test results: Sodium level of 125 mEq/L, potassium level of 6 mEq/L, serum 17-hydroxyprogesterone level of 100,000 ng/dL (normal = 1,000–3,000 ng/dL).
What test is performed to confirm the diagnosis of congenital adrenal hyperplasia (CAH)?
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