What is considered a normal blood pH range?

The normal blood pH range is critically important in assessing a patient’s metabolic and respiratory status. The normal range for arterial blood pH is typically defined as 7.35 to 7.45. This range is essential for maintaining proper physiological function, as even small deviations can indicate potential health issues.

A pH value lower than this range can suggest acidosis, which refers to an excess of hydrogen ions in the blood. Conversely, a pH value higher than this range can indicate alkalosis, which is characterized by a deficiency of hydrogen ions. Both conditions can significantly affect enzyme function, oxygen transport, and overall cellular metabolism.

Understanding this normal range is crucial for healthcare professionals, as it sets the standard against which patient blood pH can be assessed. When monitoring patients, deviations from this range can prompt further investigation and intervention to address underlying health issues.