dave_SLC said:

One practical note: write down what you did and when, before you need it.

I read this differently. The confidence in this thread is running ahead of the evidence, and I would rather the uncertainty were stated than smoothed over because it is unsatisfying.

I would rather be corrected than agreed with, if it comes to it.

dave_SLC said:

One practical note: write down what you did and when, before you need it.

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.

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.

I would rather be corrected than agreed with, if it comes to it.

From the other side of the consultation, briefly. It is worth asking what the claim would look like if it were false. If nothing would look different, it is not a claim about the world and no amount of discussion will settle it.

DeniseRN_TPA said:

It is worth asking what the claim would look like if it were false.

Mine went the same way, slower.