What is the normal range for PaO2 in an arterial blood gas measurement?

The normal range for PaO2 in an arterial blood gas measurement is 80-100 mmHg. This range indicates the partial pressure of oxygen dissolved in the blood, reflecting how well oxygen is being transported in the bloodstream from the lungs to the tissues. A PaO2 level within this range is essential for adequate oxygenation and signifies that the lungs are functioning properly in terms of gas exchange.

Values below this range may indicate hypoxemia, which can lead to tissue hypoxia, while levels above this range may suggest potential hyperoxia, which can also have negative physiological effects. By understanding these parameters, healthcare providers can assess patient oxygenation status accurately and determine the need for oxygen therapy or other interventions.