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Pathology Laboratory Services Catalog

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  Test Name
Testosterone, Free & Total, and SHBG
Synonyms
Testos FT
Testosterone Free and Tot and SHBG
Order Includes
% Free Testosterone
Testosterone, Free
Sex Hormone Binding Globulin
Testosterone Total
Specimen
Blood
Patient/Specimen Preparation
Includes:
Testosterone, Total
Testosterone, Free
% Free Testosterone
Sex Hormone Binding Globulin
Container
Serum Separator Tube
Minimum Volume
Serum Separator Tube:3.00 mL
Special Handling
Freeze Serum
Storage & Transportation Instructions
(MCVH Campus)
Storage & Transportation Instructions
(Remote Locations)
Separate serum from cells within 1 hour of collection transfer to plastic tube and freeze.
Turn Around Time
Varies by Laboratory
Reference Interval

Interpretive Information
Testosterone,Fr
Performed by Esoterix
Free Testosterone
Full Term Infants pg/ml
Males
1 -15 days 1.5 - 31
1 -2 months 3.3 - 18
3 - 4 months 0.7 - 14
5 - 6 months 0.4 - 4.8

Females
1 -15 days 0.5 - 2.5
1 - 2 months 0.1- 1.3
3 - 4 months 0.3 - 1.1
5 - 6 months 0.2 - 0.6

Prepubertal Children pg/ml
Male and Female
1 - 10 years 0.15 - 0.6

Puberty
%Free Testost
Testing performed by Esoterix

% Free Testosterone
Full Term Infants %
Males
1 -15 days 0.9 - 1.7
1 - 2 months 0.4 - 0.8
3 - 4 months 0.4 - 1.1
5 - 6 months 0.4 - 1.0

Females
1 -15 days 0.8 - 1.5
1 - 2 months 0.4 - 1.1
3 - 4 months 0.5 - 1.0
5 - 6 months 0.5 - 0.8

Prepubertal Children %
Males and Females
1 - 10 years 0.4 - 0.9

Sex HormBG
Sex Hormone Binding globulin (nmol/L)
Infants:
1 Month - 2 Years 60 - 252
Prepubertal Children:
1 - 8 Years 72 - 220
Pubertal Ages:
Males 16 - 100
Females 36 - 125
Adults:
Males 20 - 60
Females
Premenopausal 40 - 120
Postmenopausal 28 - 112
Perfomed by Esoterix
4301 Lost Hills RoadCalabasas Hills, CA 91301
Phone: (800) 444-9111


Testosterone Total
Performed by Esoterix Laboratory Services.
Units: ng/dl
Premature Infants
Males:
26 - 28 weeks, Day 4 : 59 - 125
31 - 35 Weeks, Day 4: 37 - 198
Females:
26 - 28 weeks, Day 4 : 5 - 16
31 - 35 Weeks,Day 4: 5 - 22
Full Term Infants
Males
Newborns 1 - 7 Months: 75 - 400
Females
Newborns 1-7 Months: 20 - 64

Male: Levels decrease rapidly the first week to 20 - 50 ng/dl, then increase to 60 - 400 ng/dl (mean = 190) between 20 and 60 days. Levels then
decline to prepubertal of <3 - 10 by seven months.
Female: Levels decease during the first month to <10 ng/dl and remain there until puberty.

Prepubertal Children
Additional Interpretive Information
For more information see the Esoterix Laboratory Services web site at www.esoterix.com.
Critical Values
Methodology
HPLC Tandem Mass Spectrometry, Equilibrium dialysis, IRMA
Performing Lab
Send Out
CPT Code

84270(SEX HORMONE BINDING),84402(TESTOS.,FREE),84403(TESTOSTERONE)

Internal Code
OSM 58864