Dear colleague,
We report both measured total calcium and corrected total
calcium, both with the same reference range. I can't think of any
good reasons for different reference ranges, unless of course your
correction algorithm yields something different from zero in the
middle of the reference range of measured total calcium.
Our validation protocols all use only corrected total calcium. So if
measured total calcium is abnormal but corrected total calcium is
normal, no action is taken.
Best regards,
Christian
dr. C.H.H. Schoenmakers, European Clinical Chemist
Department of Clinical Chemistry, Elkerliek Hospital
P.O. box 98, 5700 AB Helmond
The Netherlands
(+)31-492-595555 (tel), (+)31-492-595691 (fax)
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