40557:TESTOSTERONE & SEX HORMONE BINDING GLOBULIN, BIOAVAILABLE

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40557:TESTOSTERONE & SEX HORMONE BINDING GLOBULIN, BIOAVAILABLE
Alias Names: SHBG
Methodology: Chemiluminescent Immunoassay (CLIA)
Edit Date: 4/18/2010
Components: Bioavailable Testosterone / Sex Hormone Binding Globulin / Free Testosterone / % Free Testosterone / Total Testosterone
Performed: Daily
Released: Same day as tested
CPT Code: 84270 / 84403
Specimen Collection Details
Collection: One 7.5 mL serum separator tube (SST). Also acceptable: One 5 mL red top tube. Note: Collect 4 mL minimum. Draw specimen between 0600 and 1000 if possible, as testosterone levels vary throughout the day.
Handling: Allow to clot, centrifuge and separate serum from cells within 2 hours. Refrigerate. Freeze if specimen cannot be assayed within 7 days. Allow no more than one freeze/thaw cycle.
Stability: 7 days refrigerated at 2-8° C, or 2 months frozen at -20° C. Specimen unstable ambient.
Standard Volume: 2 mL serum.
Minimum Volume: 1 mL serum.
Transport: Refrigerated, or frozen on dry ice.
Comments: Gross lipemia may yield falsely elevated values.
Rejection Criteria: Gross hemolysis; gross lipemia, unless cleared by ultracentrifugation; more than one freeze/thaw cycle.

Reference Range:
Age Male Age Female
1-6 years <1.3 ng/dL 1-6 years <1.3 ng/dL
7-9 years 0.3-2.8 ng/dL 7-9 years 0.3-5.0 ng/dL
10-11 years 0.1-17.9 ng/dL 10-11 years 0.4-9.6 ng/dL
12-13 years 1.4-288 ng/dL 12-13 years 1.7-18.8 ng/dL
14-15 years 9.5-337 ng/dL 14-15 years 3.0-22.6 ng/dL
16-17 years 35.0-509 ng/dL 16-17 years 3.3-28.6 ng/dL
≥ 18 years 130-680 ng/dL 18-30 years 2.2-20.6 ng/dL
31-40 years 4.1-25.5 ng/dL
41-51 years 2.8-16.5 ng/dL
Postmenopausal 1.5-9.4 ng/dL

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