What is the normal range for arterial oxygen tension (P02)?

What is the normal range for arterial oxygen tension (P02)?

• A. 60-80
• B. 75-100
• C. 80-120
• D. 50-70

Answer: (B)

The normal range for arterial oxygen tension (PaO2) is typically considered to be between 75 to 100 mmHg in healthy adults. This range indicates adequate oxygen saturation in the blood, which is crucial for proper cellular respiration and function throughout the body. Values within this range suggest that the lungs are effectively oxygenating the blood while also allowing for sufficient oxygen to be delivered to tissues. Deviations from this range could indicate respiratory issues or hypoxemia, where the oxygen levels in the blood are either too low (hypoxemic conditions) or potentially too high in the case of certain treatments. While other ranges presented in the choices are either too low or higher than the clinically accepted normal values, the range of 75 to 100 mmHg accurately reflects the physiological norm and provides a useful benchmark for assessing respiratory function. Understanding these values is essential for diagnosing and managing pulmonary conditions effectively.

The normal range for arterial oxygen tension (PaO2) is typically considered to be between 75 to 100 mmHg in healthy adults. This range indicates adequate oxygen saturation in the blood, which is crucial for proper cellular respiration and function throughout the body. Values within this range suggest that the lungs are effectively oxygenating the blood while also allowing for sufficient oxygen to be delivered to tissues. Deviations from this range could indicate respiratory issues or hypoxemia, where the oxygen levels in the blood are either too low (hypoxemic conditions) or potentially too high in the case of certain treatments.

While other ranges presented in the choices are either too low or higher than the clinically accepted normal values, the range of 75 to 100 mmHg accurately reflects the physiological norm and provides a useful benchmark for assessing respiratory function. Understanding these values is essential for diagnosing and managing pulmonary conditions effectively.