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Calcimator

Blood Gas Interpreter Calculator

Interpret arterial blood gas (ABG) results to determine acid-base status, compensation level, and oxygenation adequacy.

Inputs

mmHg
mmHg
mEq/L
mEq/L

Results

Acid-Base Status

1 (1=Normal, 2=Resp Acidosis, 3=Resp Alkalosis, 4=Met Acidosis, 5=Met Alkalosis, 6=Mixed)

Compensation

1 (1=Uncompensated, 2=Partial, 3=Full)

Oxygenation1 (1=Normal, 2=Mild Hypoxemia, 3=Moderate, 4=Severe)
How to Use This Calculator
  1. Enter arterial blood gas values: pH, PaCO2 (mmHg), HCO3 (mEq/L), and PaO2 (mmHg).
  2. Input FiO2 (fraction of inspired oxygen) to calculate the A-a gradient.
  3. Review the primary disorder classification (respiratory vs. metabolic, acidosis vs. alkalosis).
  4. Check for compensation: expected compensation ranges are calculated automatically.
  5. Use the interpretation notes to guide clinical correlation and management decisions.
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