In blood gas analysis, what is the typical normal range for PaO2?

In blood gas analysis, the partial pressure of oxygen in arterial blood (PaO2) is a critical measurement used to assess a patient's oxygenation status. The typical normal range for PaO2 is between 80 to 100 mmHg. This range indicates that there is a sufficient amount of oxygen dissolved in the blood plasma, which is necessary for proper cellular function and overall physiological performance.

Maintaining a PaO2 within this range is vital for ensuring adequate oxygen delivery to tissues. Values below this range may suggest potential hypoxemia, indicating that the body isn't receiving enough oxygen, which can lead to tissue and organ dysfunction if not addressed.

On the other hand, values above this normal range might indicate hyperoxia, which can also have adverse effects depending on the clinical context. Thus, the selection of the 80-100 mmHg range reflects established clinical standards that are essential for assessing lung function and guiding treatment decisions.