Tissue Oxygen Pressure (pO2)

Tissue oxygen pressure (pO₂) measures the amount of oxygen available in a specific tissue area, reflecting how well oxygen is being supplied and utilized by cells. It is typically expressed in millimeters of mercury (mm Hg). Higher pO₂ values indicate good oxygen supply, essential for proper cell function and healing. Conversely, low pO₂ can signal inadequate blood flow or oxygen delivery, potentially leading to tissue damage or slow healing. Monitoring tissue pO₂ helps healthcare providers assess tissue health, especially in conditions like wounds, ulcers, or circulatory issues.