1. #1

    Testosterone Ranges at FL Lab

    I came across a lab in Florida that has very low ranges for testosterone in men. Males: 20-49 yrs. Normal range: 160-726

    Has anyone else ever come across such low ranges from a lab? 160 would be low for a 120 year old man !

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  3. #2
    Moderator Vince's Avatar
    Join Date
    Feb 2014
    Milwaukee, WI
    Here's a chart from the Mayo Clinic.

    0-5 months: 75-400 ng/dL
    6 months-9 years: <7-20 ng/dL
    10-11 years: <7-130 ng/dL
    12-13 years: <7-800 ng/dL
    14 years: <7-1,200 ng/dL
    15-16 years: 100-1,200 ng/dL
    17-18 years: 300-1,200 ng/dL
    > or =19 years: 240-950 ng/dL
    Tanner Stages*
    I (prepubertal): <7-20
    II: 8-66
    III: 26-800
    IV: 85-1,200
    V (young adult): 300-950
    I am not a medical practitioner. Any suggestions I provide are not medical recommendations and are just my opinions. Please consult with your physician on any matters concerning your health.

  4. #3
    Lab ranges are not what is ideal or optimal, lab ranges are what that particular lab sees in the population that it tests.

  5. #4
    Lab ranges are arbitrary as hell imo. They just don't account for a number of important variables. Makes more sense to use the blood test as loose reference point and treat symptoms imo.

  6. #5
    Ok. That makes sense. Thanks for the feedback. In this case, the Dr. Would need to use clinical judgement. What always surprises me are the Docs who DO base it on numbers only.

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