Dear colleagues,
We were surprised to see a false hyperkalaemia with hypocalcaemia in a
plasma blood sample from a dialysis child. Blood draw was (according to
the staff involved) as "usual" ("know how to do it" they believe). On
repeat draw everything was fine.
Having read the Southern Medical Journal 2002;95:1218 article outlining
that this may well happen if (even a small volume of)
EDTA-anticoagulated blood is by error mixed with a serum/plasma tube, I
wonder if there is another "red herring" out there which would merit
consideration.
Your thoughts and comments are welcome.
Best regards,
Dr. med. Michael Steiner
University of Rostock
Institute of Clinical Chemistry & Pathobiochemistry
D-18057 Rostock
GERMANY
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