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Arterial Blood Gas
A blood test that measures oxygen, carbon dioxide, and pH levels in arterial blood to assess lung function.
Abbreviation: ABG
Peripheral Capillary Oxygen Saturation
The percentage of oxygen in the blood, usually measured with a pulse oximeter on a finger.
Abbreviation: SPO2
Partial Pressure of Carbon Dioxide
The measure of carbon dioxide pressure in arterial blood, showing how well CO₂ is being removed from the body.
Abbreviation: PaCO2
Fraction of Inspired Oxygen
The percentage of oxygen a patient breathes in, either from air or oxygen therapy.
Abbreviation: FiO2
Partial Pressure of Oxygen (in arteries)
The measure of oxygen pressure in arterial blood, showing how well oxygen is moving from lungs to blood.
Abbreviation: PaO2