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HelpTest Code FTAM Testosterone Free, Adult Male
Clinical Indications
Aids in the evaluation of suspected hypogonadism in men with a total testosterone level at the lower limit of the normal range. Not recommended for use in women and children.
Additional Test Codes
Epic Order Name: FREE TESTOSTERONE ADULT
MALE (aka FTAM)
Sunquest Order Code: FTAM
Epic Px Code: LAB2933
Specimen Collection Type
Preferred: Gold
Acceptable: Red
Minimum Collection Volume
0.4 mL
Reference Range
Male:
14-15 years: 3-138 pg/mL
16-17 years: 38-173 pg/mL
18 years and older: 47-244 pg/mL
Tanner Stage IV: 35-169 pg/Ml
Tanner Stage V: 41-239 pg/mL
Critical Value
n/a
Interpretation
The concentration of free testosterone is derived from a mathematical expression based on the constant for the binding of testosterone to sex hormone binding globulin (SHBG).
Specimen Availability for Add-on Testing
2 Days
Specimen Stability
Refrigerated (preferred): 1 week
Ambient: 48 hours
Frozen: 2 months
Day(s) Performed
Sun-Sat
Performing Lab - Department
TUKHS-BH-Mail Outs
CPT Code
84402
LOINC Code
2991-8
Test Alias
Free testosterone
Serum testosterone free
Additional Information / Notes
This test is not recommended for females or children. For testing on females or children refer to Testosterone Free, Females or Children.