What is the normal range for PaO2 in arterial blood?

The normal range for PaO2, or the partial pressure of oxygen in arterial blood, is typically between 75 and 100 mmHg. This range indicates the adequate oxygenation of the blood, which is crucial for efficient cellular metabolism and function. Values below this range may suggest hypoxemia, which can be associated with various respiratory issues, while values above the range may indicate hyperoxia, which can also have negative physiological effects.

Understanding the normal PaO2 levels is critical for paramedics and other healthcare professionals as it aids in the assessment of a patient's respiratory status, guiding the interventions required to maintain or restore adequate oxygenation. This knowledge is essential when managing patients in both prehospital and hospital settings, ensuring timely and appropriate care.