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Androstenedione
Test Code17182
CPT Codes
82157
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Patient Preparation
An early morning specimen is preferred.
Minimum Volume
0.25 mL
Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top) tube, EDTA (royal blue-top) tube, sodium heparin or lithium heparin (green-top) tube
Instructions
Draw blood in a red-top tube (no gel). Separate serum after clotting. Do not submit glass tubes.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 28 days
Frozen: 2 years
Refrigerated: 28 days
Frozen: 2 years
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Samples collected in serum separator tubes
Methodology
Chromatography/Mass Spectrometry
Setup Schedule
Sun-Sat
Report Available
1 to 4 Day(s)
Clinical Significance
Androstenedione is useful when evaluating patients with androgen excess and managing patients with Congenital Adrenal Hyperplasia (CAH).
