Testosterone TEST

Synonyms

Allscripts (AEHR) Order Name

Testosterone, Total Serum

Sunrise Clinical Manager (SCM) Order Name

Testosterone, Total Serum

Clinical Info

Specimen Type

Blood

Container

Gold Top Tube

Collection Instructions

Specimen Type: Serum
Container/Tube: Gold-top tube
Specimen: 1 mL (0.5mL min)
Transport Temperature: Refrigerated
Stability: Stability: 5 Days Room Temperature
14 Days Refrigerated
Note: There is significant diurnal variation in serum or plasma testosterone. Specimens should be drawn in the morning when levels are highest.

Transport Instructions

Refrigerated

Specimen Stability

Methodology

Electrochemiluminescence Immunoassay (Roche Modular)

Days Performed

Monday through Friday

Performing Laboratory

Northwell Health Laboratories

CPT

84403

PDM

5302950

Result Interpretation

Testosterone Reference Range Males:
Age in Years Tanner Stage ng/dL 5-95th Percentile
7-18   I  <2.5
7-18  II  <2.5-432
7-18  III  64.9-778
7-18  IV  180-763
7-18  V  188-822
19-49  NA  249-836
≥50  NA  193-740
Interpret values <12.0 ng/dL with caution as the coefficient of variation in the low range is greater than 20%.

Testosterone Reference Range Females:
Age in Years Tanner Stage ng/dL 5-95th Percentile
8-18   I  <2.5-6.12
8-18  II  <2.5-10.4
8-18  III  <2.5-23.7
8-18  IV  <2.5-26.8
8-18  V  4.60-38.3
19-49  NA  8.4-48.1
≥50  NA  2.9-40.8 
Interpret values <12.0 ng/dL with caution as the coefficient of variation in the low range is greater than 20%.

Forms

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