Model-Based Analysis of Na-K+ Pump Influence on Potassium Depuration during Acetate Free Biofiltration (AFB)

Potassium ion (K
⁺
) kinetics in intra and extracellular compartments during hemodialysis was studied by means of a double-pool computer model which included potassium-dependent active transport (Na-K-ATPase pump) in thirty-four patients (21M/13F; aged 66 ± 22 years old, dry weight 68 ± 18 kg, height 160 ± 15 cm) on renal replacement therapy with thrice weekly 4 hour double-needle hemodialysis.