I am interested to know whether the measured ionised calcium or pH
corrected cionised calcium is the number clinicians generally act
on. My underastanding is that if the patient has an acid base
imbalance then the measured ionised calcium reflects the state of
patient (even if the measured pH is abnormal), but otherwise the pH
corrected Ca++ should be acted on (although post venepuncure pH
changes could happen int both groups). I presume most labs report
both numbers together with the pH. How many labs know which number
the clinicians are acting on?.
Samuel Vasikaran
Royal Perth Hospital
Western Australia
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