ARUP's Laboratory Test Directory

Testosterone, Adult Male : 0070130

Mnemonic: TESTOS

Methodology: Quantitative Electrochemiluminescent Immunoassay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Patient Prep: Collect specimen between 6-10 a.m.

Collect: Serum separator tube or green (lithium heparin).

Specimen Preparation: Transport 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL) Also acceptable: EDTA plasma.

Storage/Transport Temperature: Refrigerated.

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 1 week; Frozen: 6 months
Reference Interval:
Male:
14-15 years: 33-585 ng/dL
16-17 years: 185-886 ng/dL
18-39 years: 300-1080 ng/dL
40-59 years: 300-890 ng/dL
60 years and older: 300-720 ng/dL

Tanner Stage IV: 165-854 ng/dL
Tanner Stage V: 194-783 ng/dL
Interpretive Data: Total testosterone values may not reflect optimal concentrations in all individuals. Free or bioavailable testosterone measurements may provide supportive information.
Note: This test is not recommended for females or children.  For testing on females or children refer to Testosterone, Females or Children (0081058).
CPT Code(s): 84403