bloodwork
Add a Report Sign In

Testosterone free+weakly bound

A testosterone levels test measures the amount of the hormone testosterone in a sample of your blood. Hormones are chemical messengers in your bloodstream that control the actions of certain cells or organs.

A testosterone levels test may be used with other tests to help your provider find the cause of abnormal testosterone levels.

Source: MedlinePlus, U.S. National Library of Medicine

Normal range

28 published ranges, each from a named source
Male · 18 y+
130–682 ng/dL (varies by lab)
Male · 60 y – 69 y
40–168 ng/dL
Ranges from ARUP Laboratories Test Directory, Mayo Clinic Laboratories (Pediatric Test Catalog), Mayo Clinic Laboratories (Test Catalog).

All source ranges (28)
SourceSexAgeRange
ARUP Laboratories Test Directory Female 1 y – 6 y <1.3 ng/dL
ARUP Laboratories Test Directory Female 7 y – 9 y 0.3–5 ng/dL
ARUP Laboratories Test Directory Female 10 y – 11 y 0.4–9.6 ng/dL
ARUP Laboratories Test Directory Female 12 y – 13 y 1.7–18.8 ng/dL
ARUP Laboratories Test Directory Female 14 y – 15 y 3–22.6 ng/dL
ARUP Laboratories Test Directory Female 16 y – 17 y 3.3–28.6 ng/dL
ARUP Laboratories Test Directory Female 18 y – 30 y 2.2–20.6 ng/dL
ARUP Laboratories Test Directory Female 31 y – 40 y 4.1–25.5 ng/dL
ARUP Laboratories Test Directory Female 41 y – 51 y 2.8–16.5 ng/dL
ARUP Laboratories Test Directory Male 1 y – 6 y <1.3 ng/dL
ARUP Laboratories Test Directory Male 7 y – 9 y 0.3–2.8 ng/dL
ARUP Laboratories Test Directory Male 10 y – 11 y 0.1–17.9 ng/dL
ARUP Laboratories Test Directory Male 12 y – 13 y 1.4–288 ng/dL
ARUP Laboratories Test Directory Male 14 y – 15 y 10–337 ng/dL
ARUP Laboratories Test Directory Male 14 y – 15 y 9.5–337 ng/dL
ARUP Laboratories Test Directory Male 16 y – 17 y 35–509 ng/dL
ARUP Laboratories Test Directory Male 18 y+ 131–682 ng/dL
ARUP Laboratories Test Directory Male 18 y+ 130–680 ng/dL
Mayo Clinic Laboratories (Test Catalog) Male 20 y – 29 y 83–257 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog) Male 20 y – 29 y 83–257 ng/dL
Mayo Clinic Laboratories (Test Catalog) Male 30 y – 39 y 72–235 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog) Male 30 y – 39 y 72–235 ng/dL
Mayo Clinic Laboratories (Test Catalog) Male 40 y – 49 y 61–213 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog) Male 40 y – 49 y 61–213 ng/dL
Mayo Clinic Laboratories (Test Catalog) Male 50 y – 59 y 50–190 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog) Male 50 y – 59 y 50–190 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog) Male 60 y – 69 y 40–168 ng/dL
Mayo Clinic Laboratories (Test Catalog) Male 60 y – 69 y 40–168 ng/dL
details
Sample
Serum or plasma · LOINC
Code
LOINC 2990-0 · ng/dL
Also known as
Testo, Testos, Testost, Testost Free, FR
See your own Testosterone free+weakly bound Add a lab report and it is drawn against your lab's range, over time. Upload a Blood Test