Parameters:
(1) serum potassium in mmol/L
(2) total body potassium (determined by shadow shield counting of gamma emission from K-40, a naturally occurring isotope of potassium) in mmol
(3) total body water in liters (see Chapter 02).
(4) extracellular water in liters (see Chapter 02)
intracellular water in liters =
= (total body water) - (extracellular water)
extracellular potassium in mmol =
= (serum potassium in mmol/L) * (extracellular water in liters)
intracellular potassium in mmol =
= (total body potassium) - (extracellular potassium)
intracellular potassium concentration in mmol/L =
= (intracellular potassium in mmol) / (intracellular water in liters)