Corrected Calcium Calculator

Calculate the true level of calcium in the blood if there is a possibility that the measured level differs from the true level due to albumin or other factors.

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What it is

What is Corrected Calcium?

Create Date: July 18, 2024

Last Modified Date: November 20, 2024

Corrected calcium is the measure of calcium in the blood adjusted for low or high levels of albumin. Albumin can bind with calcium, and sometimes calcium levels in tests can appear falsely high or low due to variations in albumin levels. This calculator helps determine the true calcium level in the blood after accounting for albumin, ensuring a more accurate reading.

How to Calculate Corrected Calcium

The formula for corrected calcium requires two values: serum calcium and albumin. The formula is:

An image showing the formula for calculating corrected calcium.
Where:
  • CC = Corrected Calcium

  • C = Measured calcium level

  • A = Measured albumin level

Understanding Your Results

The corrected calcium value is an estimate of the actual calcium level in your blood. It's useful in cases where albumin levels are abnormal, helping healthcare providers to more accurately assess calcium levels. Remember, this tool provides an estimate and should not be used as a substitute for professional medical advice.

How to Use the Corrected Calcium Calculator

We strive to make tools that are simple and easy to use. The steps involved with using this tool include:

  1. Enter the measured calcium value in the appropriate field and select the correct unit.

  2. Enter the albumin value and select the unit of measurement.

  3. Click the calculate button and get your result instantly.

Example Calculation

Let's say there is a person who has a measured calcium level of 12 mg/dL and an albumin level of 9 g/dL. We can use this tool to get a better idea of the true calcium level. We enter 12 into the first field and then 9 into the albumin field, both of the units are correct already so we do not have to change those.

We hit calculate and get a corrected calcium value of 8.0 mg/dL. If needed, we can convert this value to mmol/L which would be 3.0.

Corrected Calcium - Frequently Asked Questions

The normal range for corrected calcium is typically between 8.5-10.2 mg/dL, according to standard medical sources.

Corrected calcium and adjusted calcium are similar but not identical. They both account for variations in binding proteins like albumin, but the methods to calculate them may differ slightly based on the specific adjustments made.

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