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17-Hydroxy Progesterone, Random Urine
Test Code39488
CPT Codes
83498<br>This test is not available for New York patient testing.
Preferred Specimen
10 mL random urine collected in a plastic, leak-proof container - no preservative
Patient Preparation
Patient should not be on any Corticosteroid, ACTH, Estrogen, or Gonadotropin medications, if possible, for at least 48 hours prior to collection of specimen.
Minimum Volume
5 mL
Instructions
10 mL of a random urine collection should be submitted for analysis. No special preservatives are required. Store specimen refrigerated during collection. Specimens should be frozen prior to shipping. Minimum specimen size is 5 mL.
Transport Temperature
Frozen
Specimen Stability
Room temperature: 1 hour
Refrigerated: 4 days
Frozen: 30 days
Refrigerated: 4 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly icteric • Gross hemolysis • Grossly lipemic
Methodology
Radioimmunoassay (RIA) following Extraction
Setup Schedule
Set up: Varies; Report available: 8 business days
Reference Range
Pediatric
Adult
Newborns and Infants | 3 Days-1 Year | up to 50 | ng/24 hrs | |
Children | 1-8 years | up to 300 | ng/24 hrs |
Adult
Male | up to 2.0 | ug/24 hrs |
Female | up to 4.5 | ug/24 hrs |
Clinical Significance
17-Hydroxy Progesterone is a steroid derived primarily from enzymatic metabolism of progesterone and 17-Hydroxy Pregnenolone. It is converted enzymatically to androstenedione and 11-Deoxycortisol. It is produced in both the gonads and adrenal glands. It is excreted into the urine in conjugated and unconjugated forms of 17-Hydroxy Progesterone and as pregnanetriol. This assay measures the total of the conjugated and unconjugated forms. It is stimulated by ACTH and suppressed by dexamethasone. Levels of urine 17-Hydroxy Progesterone are greatly increased in patients with polycystic ovarian disease and congenital adrenal hyperplasia and show exaggerated responses to ACTH in these cases. 17-Hydroxy Progesterone is the marker steroid for determining cases of 21 alpha-hydroxylase deficient congenital adrenal hyperplasia. Urine levels are frequently elevated in patients with idiopathic hirsutism.
Performing Laboratory
Inter Science Institute
944 West Hyde Park Blvd
Inglewood, CA 90302-3308