Hey all,
I’ve been a lurker for awhile on these forums. Great forum you have here. I just decided to make an account.
I’m 35, and started TRT about 3 months ago. I attend a endocrinologist for adrenal insufficiency issues. However my endo isn’t the one who prescribes my Testosterone. I go to another doctor that specializes in TRT and male vitality issues.
On my last visit to my Endo, she had a bunch of blood tests taken. Part of them were Testosterone, Free Testosterone and Estradiol.
Testosterone 796
Free Testosterone > 125 pg/ml (reference range - 3.84-34.17)
Estradiol < 19.6
So anyways, she called and said my Estradiol was zero, and that my Free Testosterone is way too high, and she recommends be discontinuing the arimidex that my other doctor has me on to correct the “issue”
So, I called my TRT doctor and left a message for him to call me back.
However while I’m waiting for a call back, I looked up his latest blood results. He uses Quest Labs for the blood tests.
My most recent Free Testosterone levels from him are 151.1 pg/mL
Now when I look at the reference range on this lab, the normal range is 35.0-155.0
Out of curiosity, I looked up my primary care doctor’s results from years ago when I was younger, and his reference range was 35-155 as well, and he used LabCorp for his blood tests.
However I have seen some threads on here mentioning the 3.84-34.17 pg/ml range.
So as you can see, I am totally confused. Both ranges seem to be using the same units, however they are both COMPLETELY different. So which one is the correct range to go by. It seems as if there are two different ranges being used.
Any help would greatly be appreciated.