Androstenedione blood test

• NOTE:: If analysis is to be delayed >24 hours, separate and store SERUM frozen

Normal Reference Range

0 – 12yrs = 0 – 1nmol/L
>12yrs = 3 – 8nmol/L

Test Information

The androgen testosterone and the oestrogens oestrone and oestradiol are precursors to A4, which is produced in the gonads and adrenal glands. A4 may build up in CAH from a lack of 11- or 21-hydroxylase, or in PCOS from accelerated testosterone turnover.

Clinical Indications

• Monitoring the treatment of patients with CAH
• Diagnosis of 17-Hydroxysteroid dehydrogenase deficiency.

Sample Required

5mL serum sample tube is required for Androstenedione blood test

Min. sample volume

1.0mL

Special Instructions and Precautions

• NOTE:: If analysis is to be delayed >24 hours, separate and store SERUM frozen

Time Limits For Retrospective Testing

Not applicable (sample referred)

Any factors affecting the test

Not applicable

Turnaround Time

3 – 5 days

Referral centre (if applicable)