CLSI Standard H-21A4 requires citrate volume adjustment when the hematocrit exceeds 55%.
Yesterday, Terry Kotrla, MS MT (ASCP) BB, chair of the MLT program at Austin Community College posted a thought-provoking reference on Medlab-L, a 2005 MLO article by Roy Midyett elucidating and challenging this practice. I am curious about how we go about managing polycythemia specimens for PTs and PTTs. What is your laboratory’s practice? Geo.
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