Acid-Base Balance & ABG Normal Ranges Visualization #AcidBase #ABG #Medicine #Physiology #CriticalCare Base Excess BE -2 to 2, Lactate 0.5 to 2 (4=metabolic acidosis), paCO2 4.7-6 pH 7.35-7.45 Anion Gap ((Na+K)/-(HCO3+Cl) 10-18 paO2 10.5-13.5 HCO3 22-26