Hey all, The other day I was looking at my lab work, and something caught my eye. The lab i’ve been going to uses a Total T reference range 1.7 to 7.5 ng/ml - which works out to 170 to 750 ng/dl Back in the country where I was diagnosed with low T, the reference ranges were 300 to 1000 ng/dl Are…

There are differences within countries. The US has had various lab ranges depending on who is doing the test. 99% of this is dictated by insurance companies or national healthcare systems. Make the normal range larger and fewer people will be out of range. Fewer people out of range means fewer peop…

[image] Drone415: which works out to 170 to 750 ng/dl Jesus

SO, basically if I get tested today in country A and B, I would show up at 690 ng/dl in both? (Or, lab A and lab B with different reference ranges between them)

[image] swoops39: Jesus Yeah no kidding! I was lucky to get tested in a more reasonable environment. Just think of how many poor sods there are out there crawling around feeling like arse.

Assuming they’re both using accurate tests, yeah you’d be in the same area numbers wise. Like if you drew six vials and sent three to Lab A and three to Lab B you’d get the same results (assuming they’re the same kind of test) but they may have different ranges listed.

Isn’t it based kn a period of their samples so can change with time? I thought they used 2 standard deviations from the mean based on a normalised distribution. Basically do you fall within 95% of the population so 2.5% above and 2.5% below? I did consider, if this is the case and the private comp…

I’ve been told several things by people who work in the professional laboratory and insurance industries, who would seem to know more about this than I would. Some have been mentioned above. They’ve lowered testosterone ranges over the years as more men dropped out of the lower normal range into l…

I wish I could find the posts from @johann77 but he went into how the tests actually work and how ranges are developed somewhere along the way that seemed like good info. I’m not saying the ranges haven’t gone down, I think they have, but I also was convinced that some of the change could be from st…

[image] Different Reference Ranges for Different Methods Testosterone Replacement Quite frequently it is discussed here why different labs/assays have different reference ranges. Trying to provide some background why the comparison of lab values is pointless without consi…

Question About Differences Between Reference Ranges

Pharma TRT

NH_Watts December 2, 2020, 5:33pm 10

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Question About Differences Between Reference Ranges

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