Osmolal Gap Calculator

The Osmolal Gap Calculator can be used to estimate the osmolal gap in blood, which is a measure of the concentration of unmeasured osmoles in the blood. It helps in diagnosing conditions like diabetes, kidney disease, and other metabolic disorders.

Input Parameters

Calculation Results

Calculation Formula

Osmolal Gap = 2 * (Sodium) + Glucose/18 - (Urea/2.8 + Albumin*23)

Where:
Sodium: Sodium concentration in blood (mEq/L)
Glucose: Glucose concentration in blood (mg/dL)
Urea: Urea concentration in blood (mg/dL)
Albumin: Albumin concentration in blood (g/dL)

Result

Osmolal Gap: -- mOsm/kg

Osmolal Gap Calculator Usage Guide

Learn how to use the Osmolal Gap Calculator and its working principles

How to Use the Osmolal Gap Calculator

The Osmolal Gap Calculator helps in estimating the osmolal gap in blood. Follow these steps to use the calculator:

  1. Enter the Sodium concentration in blood (mEq/L).
  2. Enter the Glucose concentration in blood (mg/dL).
  3. Enter the Urea concentration in blood (mg/dL).
  4. Enter the Albumin concentration in blood (g/dL).
  5. Click the "Calculate" button to compute the osmolal gap.
  6. The result will be displayed as Osmolal Gap in mOsm/kg.

Interpreting the Results

The osmolal gap is a measure of the concentration of unmeasured osmoles in the blood. A normal osmolal gap is typically less than 10 mOsm/kg. Values higher than this may indicate conditions such as diabetes, kidney disease, or the presence of other metabolic disorders.

Principle of Calculation

The osmolal gap is calculated using the formula:

Osmolal Gap = 2 * (Sodium) + Glucose/18 - (Urea/2.8 + Albumin*23)

This formula accounts for the major osmole constituents in the blood and estimates the unmeasured osmoles, providing an indication of potential metabolic disturbances.