ABG stands for Arterial Blood Gas, which is a test that measures the acidity (pH) and the levels of oxygen (O2) and carbon dioxide (CO2) in the blood from an artery.
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Normal values for ABG vary slightly depending on the laboratory and the patient's condition, but here are generally accepted normal ranges:

pH: 7.35 to 7.45

pH measures the acidity or alkalinity of the blood. A pH below 7.35 is considered acidic, while a pH above 7.45 is considered alkaline.
Partial Pressure of Oxygen (PaO2): 75 to 100 mmHg

PaO2 measures the pressure of oxygen dissolved in the blood. It reflects how well oxygen is able to move from the lungs to the blood.
Partial Pressure of Carbon Dioxide (PaCO2): 35 to 45 mmHg

PaCO2 measures the pressure of carbon dioxide dissolved in the blood. It reflects how well carbon dioxide is able to move from the blood into the lungs to be exhaled.
Bicarbonate (HCO3-): 22 to 26 mEq/L

Bicarbonate is a base (alkaline) that helps buffer acids in the blood. It is regulated by the kidneys and helps maintain the blood's pH.
Oxygen Saturation (SaO2): 95% to 100%

SaO2 measures the percentage of hemoglobin saturated with oxygen in arterial blood.


It's important to note that these values can vary slightly depending on factors such as altitude, age, and certain medical conditions. Interpretation of ABG results should be done in conjunction with the patient's clinical condition and other laboratory tests.

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