Bioavailable Testosterone/SHBG, Female & Child




Test Mnemonic

BTSTFC

CPT Codes

  • 84403 - QTY (1)
  • 84402 - QTY (1)
  • 84270 - QTY (1)

Includes

  • Testosterone
  • Testosterone, Free
  • Sex Hormone Binding Globulin
  • Testosterone, Bioavailable by Mass Spec

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) RefrigeratedCollection between 6 - 10 a.m. preferred but not required. Separate serum from cells ASAP or within 2 hours of collection. See Clinical Information for additional details.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLPlasmaSodium or Lithium heparin (Green) RefrigeratedCollection between 6 - 10 a.m. preferred but not required. Separate plasma from cells ASAP or within 2 hours of collection. See Clinical Information for additional details.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.8 mL     

Stability

Environmental Condition Description
AmbientAfter separation from cells: 24 hours
RefrigeratedAfter separation from cells: 1 week
FrozenAfter separation from cells: 6 months

Days Performed

Sun - Sat

Turnaround Time

2 - 6 days

Methodology

Name Description
Electro Chemiluminescence Immunoassay (ECLIA) 
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) 
Calculation 

Reference Range

Sex Hormone Binding Globulin
Sex Age From Age To Type Range Range Unit
Female      NormalTanner Stage I: 30 - 173nmol/L
Female      NormalTanner Stage II: 16 - 127nmol/L
Female      NormalTanner Stage III: 12 - 98nmol/L
Female      NormalTanner Stage IV: 14 - 151nmol/L
Female      NormalTanner Stage V: 23 - 165nmol/L
Female1 Days30 DaysNormal14 - 60nmol/L
Female31 Days364 DaysNormal60 - 215nmol/L
Female1 Years3 YearsNormal60 - 190nmol/L
Female4 Years6 YearsNormal55 - 170nmol/L
Female7 Years9 YearsNormal35 - 170nmol/L
Female10 Years12 YearsNormal17 - 155nmol/L
Female13 Years15 YearsNormal11 - 120nmol/L
Female16 Years17 YearsNormal19 - 145nmol/L
Female18 Years49 YearsNormal25 - 122nmol/L
Female50 Years99 YearsNormal17 - 125nmol/L
Male      NormalTanner Stage I: 26 - 186nmol/L
Male      NormalTanner Stage II: 22 - 169nmol/L
Male      NormalTanner Stage III: 13 - 104nmol/L
Male      NormalTanner Stage IV: 11 - 60nmol/L
Male      NormalTanner Stage V: 11 - 71nmol/L
Male1 Days30 DaysNormal13 - 85nmol/L
Male31 Days364 DaysNormal70 - 250nmol/L
Male1 Years3 YearsNormal50 - 180nmol/L
Male4 Years6 YearsNormal45 - 175nmol/L
Male7 Years9 YearsNormal28 - 190nmol/L
Male10 Years12 YearsNormal23 - 160nmol/L
Male13 Years15 YearsNormal13 - 140nmol/L
Male16 Years17 YearsNormal10 - 60nmol/L
Male18 Years49 YearsNormal17 - 56nmol/L
Male50 Years99 YearsNormal19 - 76nmol/L
Testosterone
Sex Age From Age To Type Range Range Unit
Female      NormalNewborn: 20 - 64ng/dL
Female2 Years3 YearsNormalLess than 20ng/dL
Female6 Years7 YearsNormalLess than 7ng/dL
Female6 Months24 MonthsNormalLess than 9ng/dL
Female4 Years5 YearsNormalLess than 30ng/dL
Female      NormalPostmenopausal: 5 - 32ng/dL
Female      NormalPremature (26 - 28 weeks): 5 - 16ng/dL
Female      NormalPremature (31 - 35 weeks): 5 - 22ng/dL
Female      NormalPremenopausal (Greater than 18 years): 9 - 55ng/dL
Female      NormalTanner Stage I: 2 -17ng/dL
Female      NormalTanner Stage II: 5 - 40ng/dL
Female      NormalTanner Stage III: 10 - 63ng/dL
Female      NormalTanner Stage IV - V: 11 - 62ng/dL
Female1 Months5 MonthsNormalLess than 20ng/dL
Female8 Years9 YearsNormal1 - 11ng/dL
Female10 Years11 YearsNormal3 - 32ng/dL
Female12 Years13 YearsNormal6 - 50ng/dL
Female14 Years15 YearsNormal6 - 52ng/dL
Female16 Years17 YearsNormal9 - 58ng/dL
Female18 Years39 YearsNormal9 - 55ng/dL
Female40 Years59 YearsNormal9 - 55ng/dL
Female60 Years99 YearsNormal5 - 32ng/dL
       Normal 
       Normal>/=1.00 
       Normal2.22 
       Normal<>6.00 
       Normal=/<33 
       Normal=/>66 
        
       >/=10.00 
       =/<7.50 
       Urgent 
       Urgent<>3.00 
       Urgent>6 or <7 
       Critical>/<4.00 
       Critical<>3.00 
       Critical>/5.00 
Male      NormalNewborn: 75 - 400ng/dL
Male      NormalPremature (26 - 28 weeks): 59 - 125ng/dL
Male      NormalPremature (31- 35 weeks): 37 - 198ng/dL
Male      NormalTanner Stage I: 2 -15ng/dL
Male      NormalTanner Stage II: 3 - 303ng/dL
Male      NormalTanner Stage III: 10 - 851ng/dL
Male      NormalTanner Stage IV - V: 162 - 847ng/dL
Male1 Months5 MonthsNormal14 - 363ng/dL
Male6 Months24 MonthsNormalLess than 37ng/dL
Male2 Years3 YearsNormalLess than 15ng/dL
Male4 Years5 YearsNormalLess than 19ng/dL
Male6 Years7 YearsNormalLess than 13ng/dL
Male8 Years9 YearsNormal2 - 8ng/dL
Male10 Years11 YearsNormal2 - 165ng/dL
Male12 Years13 YearsNormal3 - 619ng/dL
Male14 Years15 YearsNormal31 - 733ng/dL
Male16 Years17 YearsNormal158 - 826ng/dL
Male18 Years39 YearsNormal300 - 1080ng/dL
Male40 Years59 YearsNormal300 - 890ng/dL
Male60 Years99 YearsNormal300 - 720ng/dL
Testosterone, Bioavailable (LC-MS/MS)
Sex Age From Age To Type Range Range Unit
Female      NormalPostmenopausal: 1.5 - 9.4ng/dL
Female      NormalTanner Stage I: 0.3 - 5.5ng/dL
Female      NormalTanner Stage II: 1.2 - 15.0ng/dL
Female      NormalTanner Stage III: 3.8 - 28.0ng/dL
Female      NormalTanner Stage IV: 2.8 - 39.0ng/dL
Female      NormalTanner Stage V: 2.5 - 23.0ng/dL
Female1 Years6 YearsNormalLess than 1.3ng/dL
Female7 Years9 YearsNormal0.3 - 5.0ng/dL
Female10 Years11 YearsNormal0.4 - 9.6ng/dL
Female12 Years13 YearsNormal1.7 - 18.8ng/dL
Female14 Years15 YearsNormal3.0 - 22.6ng/dL
Female16 Years17 YearsNormal3.3 - 28.6ng/dL
Female18 Years30 YearsNormal2.2 - 20.6ng/dL
Female31 Years40 YearsNormal4.1 - 25.5ng/dL
Female41 Years51 YearsNormal2.8 - 16.5ng/dL
Male      NormalTanner Stage I: 0.3 - 13.0ng/dL
Male      NormalTanner Stage II: 0.3 - 59.0ng/dL
Male      NormalTanner Stage III: 1.9 - 296.0ng/dL
Male      NormalTanner Stage IV: 40.0 - 485.0ng/dL
Male      NormalTanner Stage V: 124.0 - 596.0ng/dL
Male1 Years6 YearsNormalLess than 1.3ng/dL
Male7 Years9 YearsNormal0.3 - 2.8ng/dL
Male10 Years11 YearsNormal0.1 - 17.9ng/dL
Male12 Years13 YearsNormal1.4 - 288.0ng/dL
Male14 Years15 YearsNormal9.5 - 337.0ng/dL
Male16 Years17 YearsNormal35.0 - 509.0ng/dL
Male18 Years99 YearsNormal130.0 - 680.0ng/dL
Testosterone, Free
Sex Age From Age To Type Range Range Unit
Female      NormalPostmenopausal: 0.6 - 3.8pg/mL
Female      NormalTanner Stage I: Less than 2.2pg/mL
Female      NormalTanner Stage II: 0.4 - 4.5pg/mL
Female      NormalTanner Stage III: 1.3 - 7.5pg/mL
Female      NormalTanner Stage IV: 1.1 - 15.5pg/mL
Female      NormalTanner Stage V: 0.8 - 9.2pg/mL
Female1 Years6 YearsNormalLess than 0.6pg/mL
Female7 Years9 YearsNormal0.6 - 1.8pg/mL
Female10 Years11 YearsNormal0.1 - 3.5pg/mL
Female12 Years13 YearsNormal0.9 - 6.8pg/mL
Female14 Years15 YearsNormal1.2 - 7.5pg/mL
Female16 Years17 YearsNormal1.2 - 9.9pg/mL
Female18 Years30 YearsNormal0.8 - 7.4pg/mL
Female31 Years40 YearsNormal1.3 - 9.2pg/mL
Female41 Years51 YearsNormal1.1 - 5.8pg/mL
Male      NormalTanner Stage I: Less than or equal to 3.7pg/mL
Male      NormalTanner Stage II: 0.3 - 21.0pg/mL
Male      NormalTanner Stage III: 1.0 - 98.0pg/mL
Male      NormalTanner Stage IV: 35.0 - 169.0pg/mL
Male      NormalTanner Stage V: 41.0 - 239.0pg/mL
Male1 Years6 YearsNormalLess than 0.6pg/mL
Male7 Years9 YearsNormal0.1 - 0.9pg/mL
Male10 Years11 YearsNormal0.1 - 6.3pg/mL
Male12 Years13 YearsNormal0.5 - 98.0pg/mL
Male14 Years15 YearsNormal3.0 - 138.0pg/mL
Male16 Years17 YearsNormal38.0 - 173.0pg/mL
Male18 Years99 YearsNormal47.0 - 244.0pg/mL

Special Info

Collection between 6 - 10 a.m. is preferred but not required.

Clinical Info

Bioavailable testosterone concentration is calculated using total testosterone (measured by mass spectrometry) and the binding constant of testosterone and sex hormone-binding globulin (SHBG) and/or albumin. 6 - 10 a.m. collection is preferable since the reference ranges are determined based on collections during that time. Results for patients collected outside 6 - 10 a.m. will be reported but must be interpreted in the context of the alternate collection time. Samples collected after 10 a.m. could have falsely low testosterone, and results should be interpreted carefully. For individuals on testosterone-suppressing hormone therapies (e.g., antiandrogens or estrogens), refer to cisgender female reference intervals.