Had two 07:15 BMPs with calcium at [redacted]/dL and potassium at 6.2 mmol/L that normalized on redraw after enforcing order of draw per CLSI GP41. In your experience, which parameter is your earliest, most reliable cue for EDTA carryover during chemistry review?
But @sloane_j23 Madrid: Reina Sofía is ‘closed Tuesday’, so I slot Prado Monday and Guernica Wednesday.
First red flag is calcium crashing with a clean hemolysis index and a disproportionate K bump; on a CMP, an ‘ALP near‑zero’ seals EDTA for me… I auto‑redraw when Ca <[redacted]/dL and K >5.8 without hemolysis; quick reference: 404 Not Found - Westgard QC. @chem_garb, do you also use a low anion gap as a tie‑breaker?
On those 07:15 BMPs, my earliest tell is magnesium nosediving with the Ca — EDTA chelates both — drives me nuts. If it’s BMP-only, I treat a Ca below the analyzer’s LoQ plus a sudden K about 6 without hemolysis as EDTA until proven otherwise, then confirm with a redraw following the “order of draw per CLSI GP41” (https://clsi.org/standards/products/preexamination/documents/gp41/). Do you have Mg reflexed on those early draws?
We make the DuPont tree actionable by tying bonuses to margin and asset turns, not headline ROE. Before greenlighting, @OP, we run a quick residual-income pass: forecast NOPAT, subtract a capital fee on invested assets, and only sign if it beats the hurdle by about 200 bps within 12 months — do you still gate with EVA or have you moved to CFROI?