P.S. - Our hospital laboratory's AG reference interval was recently re-derived from actual patient data (I assume healthy patients).

I agree with you, David. I wonder what percentage of labs report it? Any idea?

0.05 mmol/L (API)

Thinking about using a discard tube as a collection tube, I wondered in an order of draw where the discard-turned-collection tube would fit in. In theory. ------------------------------ Peggy A. Mann, M.S., MT(ASCP), CPP ------------------------ ...