Guest guest Posted December 22, 2004 Report Share Posted December 22, 2004 Hi john g, First the confusing part: It's a matter of unit conversion, also ranges differ between labs and by test method used. 1st test, 1:30PM was 333 ng/dL (241-827). That's converted to ng/dL from the ng/mL used in that lab report (3.33 ng/mL (2.41-8.27). 2nd test, 8:00AM T was 607 ng/dL (260-1000?) (Range is different from 1st test, because this test was done by another lab.) 2nd test free T was 157 (50-210), These are either different units than age tables, or a different type of laboratory test was used. The chart you mention shows 12.3 mean free testosterone ages 25-35. (I think the 12.3 is in pg/mL, not ng/dL) That's converted from 0.428 nmol/L International Units. (I think your 8.8 number was misread from the wrong column in the tables.) Second, the even more confusing part: Why did the tests come back 1st 333 then 2nd 607? Time of day? that would account for some of the difference, but I don't think as much as that (I could be wrong). How many days apart were the tests done? Different labs were used. Were results from one of them incorrect? It happens. You didn't start any TRT between tests, did you? I think a doc who saw your 2nd test would not diagnose hypogonadism. Your first postings mentioned concerns about small penis and testicles, plus depression. Those don't necessarily indicate hypogonadism. If your problems are not hormone-related, hormone therapy won't help them. Bruce > > hi group. in october i had a testosterone blood test taken. it was at > 1:30 in the afternoon. i remember that my results came back with a > 3.33 reading in test. the problem is i cant remember if it was ng/dl > or mg, and since i cant find my copies of that test at the current > time i cant clear that up. i do remember that the range was very > broad from like 2.8-8.5 or so. i took at second reading at the > request of an endo at 8 in the morning on an empty stomach came back > with readings of 2.59% free test out of 1.0-2.7, total test was 607 > out of 260-1000 again ng/dl and test free was 157 in range of 50-210 > pg/ml. my was curious as to why the " normal " ranges were so small in > comparison to my first test. especially the free test. were the > smaller ranges set up on purpose or are they standard ranges? i saw a > chart on here that said a 25 year old should be 8.8 in (nmol/L). is > nmol/l the same as what units i was tested in? if so 2.59 surely has > to be way below unacceptable? especially since if i recall right, i > was higher at later in the day on the first test (3.33). i would > appreciate feedback. > thanks a ton, > > john g Quote Link to comment Share on other sites More sharing options...
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