What is the normal pH of blood?

The normal pH of blood is typically around 7.4, which is slightly basic on the pH scale. Maintaining this pH range is crucial for various physiological functions and enzymatic processes within the body. Deviations from this pH can lead to conditions such as acidosis (if the pH is too low) or alkalosis (if the pH is too high), both of which can have significant impacts on health.

The body's regulatory mechanisms, including respiration and renal function, work to keep blood pH within this narrow range, as even small changes can affect oxygen transport and the stability of macromolecules like proteins. Thus, when considering blood pH, 7.4 is widely accepted as the normal physiological state, underscoring its importance in maintaining homeostasis.