MLAB 2401: CLINICAL CHEMISTRY. WATER BALANCE & ELECTROLYTES Part Two. Electrolytes. Electrolytes Substances whose molecules dissociate into ions when they are placed in water. Osmotically active particles Classification of ions: by charge CA T IONS (+ )
WATER BALANCE & ELECTROLYTES
K+ moves into RBCs to preserve electrical balance,
causing plasma potassium to decrease.
( Sodium also shows a slight decrease )
Reaction: CO2 + H2O ⇋ H2CO3 → H+ + HCO–3