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FTEPD / 500290E
TESTOSTERONE, FREE AND TOTAL, PEDIATRIC, SERUM

Test Code FTEPD / 500290E 
Test TESTOSTERONE, FREE AND TOTAL, PEDIATRIC, SERUM 
Methodology HPLC Tandem Mass Spectrometry. Equilibrium Dialysis, Binding Capacity 
Description Includes Free Testosterone, Total Testosterone and Sex Hormone Binding Globulin (SHBG).

NOTE: Please order this test if patient is 16 years of age or younger.
For adult patients order TESTOSTERONE, TOTAL AND FREE, SERUM (TESFT). 

Specimen Draw blood in a plain red-top tube or serum gel tube. Spin down and separate serum within one hour. Send 2.0 mL (minimum volume: 1.0 mL - does not allow for repeat testing) of serum frozen in a plastic, screw-capped vial. 
Reference Values FULL-TERM INFANTS (MALE)
1 - 15 days: 1.5 - 31 pg/mL
1 - 2 months: 3.3 - 18 pg/mL
3 - 4 months: 0.7 - 14 pg/mL
5 - 6 months: 0.4 - 4.8 pg/mL

FULL-TERM INFANTS (FEMALE)
1 - 15 days: 0.5 - 2.5 pg/mL
1 - 2 months: 0.1 - 1.3 pg/mL
3 - 4 months: 0.3 - 1.1 pg/mL
5 - 6 months: 0.2 - 0.6 pg/mL

PREPUBERTAL CHIDREN (MALE AND FEMALE)
1 - 10 years: 0.15 - 0.6 pg/mL

PUBERTY: Comprehensive values for free testosterone by dialysis for both males and females throughout puberty are currently unavailable.

ADULTS
Male: 52 - 280 pg/mL
Female: 1.1 - 6.3 pg/mL

% FREE TESTOSTERONE
FULL-TERM INFANTS (MALE)
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 %

FULL-TERM INFANTS (FEMALE)
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 CHIDREN (MALE AND FEMALE)
1 - 10 years: 0.4 - 0.9 %

PUBERTY: Comprehensive values for free testosterone by dialysis for both males and females throughout puberty are currently unavailable.

ADULTS
Male: 1.5 - 3.2 %
Female: 0.8 - 1.4 %

SEX HORMONE BINDING GLOBULIN (SHBG)
INFANTS
1 month - 2 years: 60 - 252 nmol/L

PREPUBERTAL CHILDREN
1 - 8 years: 72 - 220 nmol/L

PUBERTAL AGES
Male: 16 - 100 nmol/L
Female: 36 - 125 nmol/L

ADULTS
Male: 20 - 60 nmol/L
Female:
Premenopausal: 40 - 120 nmol/L
Postmenopausal: 28 - 112 nmol/L 

Analytic Time 3 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 84270  SHBG
84402  Total testosterone
84403  Free Testosterone