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Testosterone, Free
Test CodeTESFR
Alias/See Also
Quest Testosterone, Free Test Code 58958
CPT Codes
84402
Preferred Specimen
1 mL Serum
Note: This assay should be performed on adult males >20 years old.
Note: This assay should be performed on adult males >20 years old.
Minimum Volume
0.2 mL Serum
Transport Container
Transport tube
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
​Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 14 days
Refrigerated: 7 days
Frozen: 14 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis
Lipemia
Icteria
Lipemia
Icteria
Methodology
Radioimmunoassay (RIA)
Setup Schedule
Tues-Sun
Report Available
2-4 days
Reference Range
Unknown gender, Age to 0Y:
Reference Range
Male:
20-50 years 0.87-5.47 ng/dL
Female:
Normal 0.03-0.32 ng/dL
Follicular Phase 0.05-0.32 ng/dL
Luteal Phase 0.05-0.25 ng/dL
Oral Contraceptive 0.06-0.20 ng/dL
Post Menopausal 0.03-0.17 ng/dL
Unknown gender, Age to 19Y:
Reference Range
Male:
20-50 years 0.87-5.47 ng/dL
Female:
Normal 0.03-0.32 ng/dL
Follicular Phase 0.05-0.32 ng/dL
Luteal Phase 0.05-0.25 ng/dL
Oral Contraceptive 0.06-0.20 ng/dL
Post Menopausal 0.03-0.17 ng/dL
Unknown gender, Age to 50Y:
Reference Range
Male:
20-50 years 0.87-5.47 ng/dL
Female:
Normal 0.03-0.32 ng/dL
Follicular Phase 0.05-0.32 ng/dL
Luteal Phase 0.05-0.25 ng/dL
Oral Contraceptive 0.06-0.20 ng/dL
Post Menopausal 0.03-0.17 ng/dL
Unknown gender, Age to 133Y:
Reference Range
Male:
20-50 years 0.87-5.47 ng/dL
Female:
Normal 0.03-0.32 ng/dL
Follicular Phase 0.05-0.32 ng/dL
Luteal Phase 0.05-0.25 ng/dL
Oral Contraceptive 0.06-0.20 ng/dL
Post Menopausal 0.03-0.17 ng/dL
Reference Range
Male:
20-50 years 0.87-5.47 ng/dL
Female:
Normal 0.03-0.32 ng/dL
Follicular Phase 0.05-0.32 ng/dL
Luteal Phase 0.05-0.25 ng/dL
Oral Contraceptive 0.06-0.20 ng/dL
Post Menopausal 0.03-0.17 ng/dL
Unknown gender, Age to 19Y:
Reference Range
Male:
20-50 years 0.87-5.47 ng/dL
Female:
Normal 0.03-0.32 ng/dL
Follicular Phase 0.05-0.32 ng/dL
Luteal Phase 0.05-0.25 ng/dL
Oral Contraceptive 0.06-0.20 ng/dL
Post Menopausal 0.03-0.17 ng/dL
Unknown gender, Age to 50Y:
Reference Range
Male:
20-50 years 0.87-5.47 ng/dL
Female:
Normal 0.03-0.32 ng/dL
Follicular Phase 0.05-0.32 ng/dL
Luteal Phase 0.05-0.25 ng/dL
Oral Contraceptive 0.06-0.20 ng/dL
Post Menopausal 0.03-0.17 ng/dL
Unknown gender, Age to 133Y:
Reference Range
Male:
20-50 years 0.87-5.47 ng/dL
Female:
Normal 0.03-0.32 ng/dL
Follicular Phase 0.05-0.32 ng/dL
Luteal Phase 0.05-0.25 ng/dL
Oral Contraceptive 0.06-0.20 ng/dL
Post Menopausal 0.03-0.17 ng/dL
Performing Laboratory
QUEST DIAGNOSTICS NICHOLS VALENCIA
27027 TOURNEY ROAD
VALENCIA, CA 91355-5386
