Androstenedione

Test ID: 

704104

CPT code:

82157

Synonyms:

4-Androstenedione

Clinical Use:

Androstenedione is useful when evaluating patients with androgen excess and managing patients with Congenital Adrenal Hyperplasia (CAH

Test Information:

Androstenedione (also known as 4-androstenedione and δ4-androstenedione) is a 19-carbon steroid hormone produced in the adrenal glands and the gonads that is the common precursor in the biochemical pathway that produces the androgen testosterone and the estrogens estrone and estradiol.1

Specimen Type:

Serum

Requested Volume: 

1 mL

Minimum Volume: 

0.25 mL

Container Type: 

Red-top tube. Do not use a gel-barrier tube. The use of gel-barrier tubes is not recommended due to slow absorption of the steroid by the gel. Depending on the specimen volume and storage time, the decrease in androstenedione level due to absorption may be clinically significant.

Collection:

Transfer separated serum to a plastic transport tube.

Storage Instructions:

Refrigerate.

Stability Requirements:

Room temperature: 14 days
Refrigerated: 28 days
Frozen: 2 years

Rejection Criteria

Gross hemolysis; lipemia; gel-barrier tube

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