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17182 ANDROSTENEDIONE
Test CodeANDROST
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 (green-top) tube 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 Container
Transport tube
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
Setup Schedule
Set up: Daily; Report available: 2-5 days
Clinical Significance
Androstenedione may be useful in evaluating patients with androgen excess and managing patients with congenital adrenal hyperplasia (CAH).
