Empeiria

Keeping blood chemistry balanced

Clinically: Acid-base regulation

What normal looks like

Blood is held very slightly alkaline, in a range so narrow that moving outside it is always significant. Lungs adjust within minutes by changing breathing; kidneys adjust over hours to days. Diet shifts this far less than is often claimed.

In clinical terms

Coordinated renal bicarbonate handling and respiratory carbon dioxide clearance maintaining arterial pH.