Therefore the serum level is decreased. This combination may be given by continuous infusion or as an IV push. The onset of effect is less than 15 minutes and the duration may last as long as the infusion continues. Sodium bicarbonate - Sodium bicarbonate also shifts potassium into cells. Because sodium bicarbonate decreases the serum pH, hydrogen ions move out of the cells into the serum.
Potassium ions move into the cells to maintain ionic balance.
Sodium bicarbonate is usually given as a IV bolus and a continuous infusion is started. The onset of action is in 10-15 minutes and the duration is as long as the infusion continues. The development of alkalosis must be monitored. Onset of action is within 30 minutes and duration is 2-3 hours. Definitive measures Definitive measures remove the excess potassium from the body.