An Arterial Blood Gas (ABG) Analyzer is a diagnostic device used to measure oxygen (PaO₂), carbon dioxide (PaCO₂), pH, and other important parameters in arterial blood. It helps healthcare providers evaluate how well the lungs are delivering oxygen to the blood and removing carbon dioxide. The test is essential in critically ill patients, respiratory failure, and ventilator management. The machine provides fast and accurate results, helping doctors make quick treatment decisions in emergency and ICU settings.