Corrected Calcium Calculator
Albumin-corrected serum calcium (Payne formula). Total calcium under-reads true calcium status when albumin is low — this everyday correction is essential in CKD, malnutrition, sepsis and vitamin-D-deficient patients.
mg/dL
g/dL
Formula: Corrected Ca (mg/dL) = measured Ca + 0.8 × (4.0 − albumin g/dL)
Enter measured calcium and albumin to compute the albumin-corrected calcium.
★ DoctorScribe — AI Medical Scribe
Stop doing bedside arithmetic
DoctorScribe corrects calcium for albumin automatically as you dictate results and surfaces abnormal values in the assessment.
Clinical Disclaimer: The albumin-correction formula is an approximation validated at normal albumin (4.0 g/dL). It is unreliable in critical illness, marked acid–base disturbance and severe hypoalbuminaemia. Ionised calcium is the gold standard when accuracy matters. Always verify against your local prescribing reference and apply clinical judgment.
Every result, interpreted in context
DoctorScribe pulls calcium and albumin from your dictation, applies the correction, and flags hypo-/hypercalcaemia inside the note — no manual maths.
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