What is the normal range of extracellular pO2 in mmHg?

The normal range of extracellular pO2 (partial pressure of oxygen) in mmHg typically falls between 35 to 45 mmHg. This range is important for maintaining adequate oxygenation in tissues and ensuring proper cellular metabolism.

Oxygen is essential for aerobic respiration, and the partial pressure of oxygen in arterial blood is a critical parameter that influences oxygen's diffusion across the alveolar-capillary membrane in the lungs, as well as its delivery to tissues. Values outside of this range can indicate respiratory problems, metabolic disturbances, or other health issues.

In clinical practice, monitoring pO2 levels helps assess a patient's respiratory function and overall oxygenation status. A normal pO2 status at the cellular level is vital for organ function and metabolic processes.