Found this through search years later and it is still the best discussion of the question, so adding one thing. Worth stating the units and the reference range whenever you post a number here. A large fraction of the apparent disagreement in these threads is two people using different units and both being right.
That is the short version; the long version is somebody else's post.
dave_SLC said:If you are going to change something, change one thing and give it long enough to express itself.
True, with the qualification that this is a self-selected group. The people for whom it did not work post less, and that shapes everything we think we know.
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Shop Reference Standardsdave_SLC said:If you are going to change something, change one thing and give it long enough to express itself.
This is exactly what I could not find anywhere else.
From the other side of the consultation, briefly. It helps to say which part of this you are uncertain about. A precise question gets a precise answer; a general one gets everybody’s favourite anecdote.