What is the normal range for blood pH?

The normal range for blood pH is 7.35 to 7.45, which indicates a slightly basic environment essential for numerous physiological processes in the body. Blood pH is tightly regulated, as even slight deviations from this range can have significant impacts on metabolic functions, oxygen delivery, and enzyme activity.

When pH is maintained within this range, it suggests that the body’s acid-base balance is functioning properly, with adequate compensation from respiratory and renal mechanisms managing acids and bases. A pH lower than 7.35 indicates acidosis, and a pH higher than 7.45 indicates alkalosis, both of which can lead to serious health complications. Monitoring blood pH is integral in clinical practice, especially in critical care and emergency medicine settings.