Treating a patient solely based on testing levels is not a proper way to evaluate and treat a patient, however, understanding the normal ranges for a patient is an important piece to the puzzle. What are Normal Testosterone Levels? The normal level of Total Testosterone is often described as between 350-1200 ng/dl (270-1070 ng/dl in another study), however, this range is not associated with age and everyone agrees that men have peak testosterone levels in their early twenties and then slowly decline at 1-2% per year after that. Normal values will vary by lab as will the reference range. In the US, ranges are seen in nanograms per deciliter.
Total Testosterone represents the Total amount of Testosterone produced in the body. The Free Testosterone level refers to the amount of unattached testosterone in the blood stream (approx. 1-4% of the blood stream) that is biologically available, “free”, for bind with the proteins needed for processing testosterones benefits in the body.
The next two charts show LabCorps normal ranges of Testosterone for various age groups.
Total Testosterone Normal Range by Age (LabCorp)
7 mo. – 9 years
< 30 ng/dl
Free Testosterone Normal Range by Age (LabCorp)
Saleamp Design March 16th, 2015
Tags: androgen deficiency, erectile dysfunction, fatigue, Free Testosterone levels, Hormone Replacement physician, hypogonadism, irritability, low libido, Low T symptoms, low testosterone levels, symptoms of low testosterone, testosterone, Testosterone replacement therapy, Total Testosterone