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Sorted By Test Name - Mayo Medical Laboratories

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17OHP<br />

81151<br />

Pediatric Reference Ranges:<br />

Newborns and Infants:<br />

3 days to 1 year: Up to 50 ng/24 hrs<br />

Children: 1 - 8 years: Up to 300 ng/24 hrs<br />

Adult Reference Ranges:<br />

Male: Up to 2.0 ug/24 hrs.<br />

Female: Up to 4.5 ug/24 hrs.<br />

<strong>Test</strong> Performed by: Inter Science Institute<br />

944 West Hyde Park Blvd.<br />

Inglewood, CA 90302<br />

17-Hydroxypregnenolone, Serum<br />

Clinical Information: Congenital adrenal hyperplasia (CAH) is caused by inherited defects in steroid<br />

biosynthesis. Deficiencies in several enzymes cause CAH including 21-hydroxylase (CYP21A2<br />

mutations; 90% of cases), 11-hydroxylase (CYP11A1 mutations; 5%-8%), 3-beta-hydroxy dehydrogenase<br />

(HSD3B2 mutations;

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