What is the normal range of pO2 in the arterial blood?

The normal range of partial pressure of oxygen (pO2) in arterial blood is considered to be between approximately 75 to 100 mmHg. This range indicates that the blood is effectively saturated with oxygen and is sufficient for the body's metabolic needs. A pO2 within this range ensures that there is adequate oxygen delivery to tissues and organs, which is crucial for maintaining physiological function.

In a clinical setting, monitoring pO2 is essential for assessing a patient's respiratory function and detecting potential hypoxemia, which could lead to serious health issues if not addressed. Values below the normal range may suggest respiratory problems or inadequate oxygenation, while values significantly above the normal range are typically not physiological and may indicate hyperoxia from supplemental oxygen use.

Understanding this normal range helps healthcare professionals evaluate patient conditions accurately and make informed decisions regarding treatment or further investigation.