Androstenedione

Specimen Tube Type Transport

Non Gel Red Top 

Container Whole Blood Required

7 ml whole blood in a Non Gel Red Top 

Summary Test Name

Androstenedione

Special Handling Instructions

Store serum in PCRL rack in freezer Red top serum no seperator/GEL

Specimen Preparation Outreach

Spin within 2 hours of collection, separate serum into plastic 12 x 75 pour-off tube. Cap with red plastic stopper. Freeze in PCRL rack.

Specimen Stability

Specimens may be stored refrigerated for 24 hrs. Longer if frozen.

Minimum Volume

0.3 ml serum

Specimen Transport

Frozen

Specimen Preparation In House

Allow blood to clot 30 minutes at room temperature. Spin separate and freeze until analysis

Test Turnaround Time Routines And Stats

2-8 days

Preferred Volume

0.6 mL serum

Reference Value

Androstenedione Reference Range by LC-MS/MS
Age	FEMALE	MALE
Premature Infants (26-28 weeks) - Day 4	0.92 - 2.82 ng/mL	0.82 - 2.82 ng/mL
Premature Infants (31 - 35 weeks) - Day 4	0.80 - 4.46 ng/mL	0.80 - 4.46 ng/mL
Premature Infants, 1 - 7 days	0.20 - 2.90 ng/mL	0.20 - 2.90 ng/mL
8 - 30 days	< 0.81 ng/mL	< 0.81 ng/mL
1 - 5 months	< 0.69 ng/mL	< 0.69 ng/mL
6 - 24 months	< 0.16 ng/mL	< 0.16 ng/mL
2-3 years	< 0.17 ng/mL	< 0.12 ng/mL
4-5 years	< 0.22 ng/mL	< 0.18 ng/mL
6 - 7 years	< 0.29 ng/mL	< 0.30 ng/mL
8 - 9 years	< 0.43 ng/mL	< 0.31 ng/mL
10-11 years	< 1.24 ng/mL	< 0.40 ng/mL
12 -13 years	0.24 - 1.73 ng/mL	< 0.65 ng/mL
14-15 years	0.39 - 2.00 ng/mL	< 0.95 ng/mL
16-17 years	0.35 - 2.12 ng/mL	0.30 - 1.13 ng/mL
18 - 39 years	0.26 - 2.14 ng/mL	0.33 - 1.34 ng/mL
40 years and older	< 0.83 ng/mL	0.23 - 0.89 ng/mL
Pre-Menopausal	0.26 - 2.14 ng/mL	Does Not Apply
Post - Menopausal	< 0.83 ng/mL	Does Not Apply
Tanner Stage I	< 0.52 ng/mL	< 0.33 ng/mL
Tanner Stage II	< 1.38 ng/mL	< 0.49 ng/mL
Tanner Stage III	0.37 - 2.24 ng/mL	< 0.88 ng/mL
Tanner Stage IV-V	0.35 - 2.05 ng/mL	0.35 - 1.07 ng/mL

Test Results

ng/mL