ARUP's Laboratory Test Directory

Testosterone, Females or Children : 0081058

Mnemonic: TESTOS MAS

Ordering Recommendation: Use in conjunction with free testosterone in the evaluation of suspected hyperandrogenemia in women and children.
Methodology: Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
Performed: Sun-Sat
Reported: 1-4 days
Specimen Required: Patient Prep: Collect between 6-10 a.m.

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

Specimen Preparation: Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)

Storage/Transport Temperature: Refrigerated.

Remarks: This test is suggested for women and children due to an improved sensitivity of testosterone by LC-MS/MS.

Unacceptable Conditions: EDTA plasma.

Stability (collection to initiation of testing): After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 6 months
Reference Interval:
Effective November 14, 2011
Serum Total Testosterone, Determined by LC-MS/MS
Female Male
Premature (26-28 weeks): 5-16 ng/dL
Premature (31-35 weeks): 5-22 ng/dL
Newborn: 20-64 ng/dL
1-5 months: Less than 20 ng/dL
6-24 months: Less than 9 ng/dL
2-3 years: Less than 20 ng/dL
4-5 years: Less than 30 ng/dL
6-7 years: Less than 7 ng/dL
8-9 years: 1-11ng/dL
10-11 years: 3-32 ng/dL
12-13 years: 6-50 ng/dL
14-15 years: 6-52 ng/dL
16-17 years: 9-58 ng/dL
18-39 years: 9-55 ng/dL
40-59 years: 9-55 ng/dL
60 years and older: 5-32 ng/dL
Premenopausal (Greater than 18 years): 9-55 ng/dL
Postmenopausal: 5-32 ng/dL
Tanner Stage I: 2-17 ng/dL
Tanner Stage II: 5-40 ng/dL
Tanner Stage III: 10-63 ng/dL
Tanner Stage IV-V: 11-62 ng/dL 		Premature (26-28 weeks): 59-125 ng/dL
Premature (31-35 weeks): 37-198 ng/dL
Newborn: 75-400 ng/dL
1-5 months: 14-363 ng/dL
6-24 months: Less than 37 ng/dL
2-3 years: Less than 15 ng/dL
4-5 years: Less than 19 ng/dL
6-7 years: Less than 13 ng/dL
8-9 years: 2-8 ng/dL
10-11 years: 2-165 ng/dL
12-13 years: 3-619 ng/dL
14-15 years: 31-733 ng/dL
16-17 years: 158-826 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 I: 2-15 ng/dL
Tanner Stage II: 3-303 ng/dL
Tanner Stage III: 10-851 ng/dL
Tanner Stage IV-V: 162-847 ng/dL

Interpretive Data: Total testosterone values may not reflect optimal concentrations in all individuals. Free or bioavailable testosterone measurements may provide supportive information.

See Compliance Statement B: www.aruplab.com/CS
Note: This test is suggested for women and children due to an improved sensitivity of testosterone by LC-MS/MS.
CPT Code(s): 84403