The<unk>  plots the proportion of<unk>  in its saturated form on the vertical axis against the prevailing oxygen tension on the horizontal axis. The oxyhemoglobin<unk><unk>  is an important tool for understanding how our blood carries and releases oxygen. Specifically, the oxyhemoglobin<unk><unk>  relates oxygen saturation (SO2) and partial pressure of oxygen in the blood (PO2), and is determined by what is called "hemoglobin's affinity for oxygen," that is, how readily<unk>  acquires and releases oxygen molecules from its surrounding tissue.
Oxygen-haemoglobin dissociation curve
Arteriovenous oxygen difference
Oxygen Enhancement Ratio
Arterial blood gas
Pulse oximetry
Fraction of inspired oxygen
Ventilation/perfusion ratio
Alveolar gas equation