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Corrected calcium
Total calcium corrected for albumin, so a low albumin does not read as hypocalcaemia that is not there.
Fill the fields above and the answer appears here, with the working spelled out — the same working the in-product version saves to the chart.
Nothing you type here is sent anywhere. The calculation runs in your browser and the page keeps no record of it.How it is worked out
Corrected calcium = measured calcium + 0.8 × (4 − albumin), with calcium in mg/dL and albumin in g/dL.
What it does not do
The correction is an approximation and it is unreliable in critical illness and in advanced kidney disease. Where the answer changes what you would do, measure ionised calcium instead.
It is a calculator, not a clinician. Nothing here is medical advice, and the person prescribing owns the decision.
Save this to a patient’s chart
That is the one thing this page cannot do. Inside MedAppz the same calculator writes the value and its working onto the record, so a year later anybody reading the chart can see which numbers produced it. 15 more calculators come with it.