Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
ancillary test for congenital adrenal hyperplasia, particularly in situations in which a diagnosis of 21-hydroxylase and 11-hydroxylase deficiency have been ruled out and for confirming a diagnosis of 3-b-hydroxydehydrogenase (3-b-HSD) deficiency and 17-alphahydroxylase deficiency.
Age and sex specific reference ranges provided with report.
2 - 6 days
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and freeze.
Test sent to Mayo Medical Laboratories.