CPT Code: 83498
LOINC: 1668-3
Specimen Type: Red nongel
Frequency: Set Up: Mon-Fri; analytic time 2 days
Instructions: Draw blood in a plain, red-top tube. Spin down and send 0.6 mL of serum refrigerated. Min 0.25mL. Gross hemolosis or lipemia unacceptable
Text: 17-hydroxyprogesterone is 1 of the 3 analytes along with cortisol and
androstenedione, that constitutes the best screening test for congenital
adrenal hyperplasia (CAH), caused by either 11- or 21-hydroxylase
deficiency. Also used to evaluate females with hirsutism or infertility.
Methodology: Liquid Chromatography - Tandem Mass Spectrometry (LC-Ms/MS)