Corrected Calcium Calculator
The Corrected Calcium calculator adjusts measured serum calcium for albumin levels. Since calcium is partly bound to albumin, low albumin can cause falsely low calcium readings.
Calculator
LiveNormal: 8.5-10.5 mg/dL
Normal: 3.5-5.0 g/dL
Enter values to see your result.
How to Use the Calculator
- Enter measured serum calcium level.
- Enter serum albumin level.
- View corrected calcium result instantly.
What the Corrected Calcium Means
Corrected calcium provides a more accurate assessment of calcium status when albumin levels are abnormal. Normal corrected calcium is typically 8.5-10.5 mg/dL. Values outside this range may indicate hypocalcemia or hypercalcemia requiring further evaluation.
When to Use This Calculator
- Interpreting calcium in hypoalbuminemia
- Evaluating hypercalcemia in malignancy
- Monitoring chronic kidney disease patients
- Post-thyroidectomy calcium assessment
Frequently Asked Questions
When should I correct calcium for albumin?
Correct calcium when albumin is abnormal (typically <4.0 g/dL). This is especially important in hospitalized patients, those with liver disease, malnutrition, or nephrotic syndrome.
Is ionized calcium better than corrected calcium?
Ionized calcium directly measures the physiologically active form and is more accurate, especially in critically ill patients, those with acid-base disturbances, or abnormal albumin levels. However, it requires special handling and is not always available.