A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Androstenedione
Test Code17182
CPT Codes
82157
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.25 mL
Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top) tube, EDTA (royal blue-top) tube, sodium heparin (green-top) tube or lithium heparin (green-top) tube
Instructions
SST® tubes are unacceptable. Draw blood in a red-top tube (no gel). Separate serum after clotting. Ship serum at room temperature. Do not submit glass tubes. An early morning specimen is preferred.
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 72 hours
Refrigerated: 28 days
Frozen: 2 years
Refrigerated: 28 days
Frozen: 2 years
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Samples collected in serum separator tubes (SST)
Methodology
Chromatography/Mass Spectrometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Night Sets up 6 days a week.
Clinical Significance
Androstenedione may be useful in evaluating patients with androgen excess and managing patients with congenital adrenal hyperplasia (CAH).