Definition Describes the relationship between PCO2 and total CO2 concentration in blood. Three Forms of Carbon Dioxide in the Blood 1.         Physically dissolved CO2 (~5%)             Henry’s law : dissolved CO2 increases linearly with increases in PCO2 CO2 solubility = 0.06 mL CO2/dL blood/mm Hg (20 times higher than O2 solubility) 2.         Carbamino compounds (small) […]