Androstenedione

Diagnostic Use

DHEA and 4AD are reffered to adrenal androgens. They are secreted by the adrenals and gonads and are precursors to testosterone. There is a small diurnal pattern parrallel to cortisol. Clinically because of the association with testosterone, DHEA and 4AD are involved in the production and maintenance of secondary sex characteristics. Thus gonadal disturbances such as delayed puberty infertility, precocious puberty, and conditions such as Klinefelter's syndrome (XXY , primary hypogonadism) can lead to abnormal DHEA and 4AD levels.

Department

Endo/Steroid Lab

Delphic Registration Code

ANDR

Synonyms

AD
Delta 4A

Turnaround Time

14 days

Test Code

3707

Specimen Type

• Serum

Specimen Requirements

Tube/Container Type:

Preferred

• Serum (Red Cap)

Preferred Sample Volume (ml)

1

Paediatric Specimen Requirements

Tube/Container Type:

Preferred

• Serum (Red Cap)

Preferred Sample Volume (ml)

0.6

Additional Specimen Information

SST and lithium heparin tubes are unacceptable

Aliquot Instructions

Sample Type

• Serum

Minimum Volume (ml)

0.3

Transport to Lab

Frozen
If overnight - Frozen

Additional Referral/Aliquot Information

Preferred aliquot, Serum 600 µL. Aliqout storage, Freeze. Paediatrics absolute minimum 300uL serum

Reference Intervals

< 6 nmol/L

Test Method

LC MS/MS after organic extraction.

Non-Funded Test Cost

$49.84 (Exclusive of GST)

Billing Code

3707

Call endocrine and Steroid laboratory Phone 03 3640 885

For results please contact Canterbury Health Laboratories ph. 03 364 0300.

Contact Information

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