What is the normal range for adult human blood pH?

The normal range for adult human blood pH is 7.35 to 7.45. This range is critical for proper physiological function, as even slight deviations can significantly affect various biological processes. Blood pH is tightly regulated by the body’s buffering systems, including bicarbonate, respiratory function, and renal activity, to maintain homeostasis.

In healthy individuals, a pH below 7.35 indicates acidosis, while a pH above 7.45 indicates alkalosis. Both conditions can interfere with cellular processes and can be indicative of underlying health issues. Hence, maintaining blood pH within this range is essential for metabolic functions and overall health.