What Does PO2 Stand For?

PO2 stands for Partial Pressure Of O2

PO2, or Partial Pressure Of O2, refers to the pressure exerted by oxygen molecules in a mixture of gases, such as air. It is a key parameter in respiratory physiology and is crucial for assessing oxygen availability in both environmental and clinical settings. PO2 is typically measured in millimeters of mercury (mmHg) or kilopascals (kPa), and plays a vital role in determining the effectiveness of oxygen diffusion into the bloodstream from the lungs. Understanding PO2 is essential for evaluating respiratory function, diagnosing hypoxia, and managing patients requiring oxygen therapy.