The effects of different routes of administration in serum potassium are not well defined; however, complications such as tachycardia, increased blood pressure, and palpitations are more common with intravenous administration. Salbutamol may be used concomitantly with insulin, whose effects are potentiated. The effect of sodium bicarbonate on hiperkalemia is less than that of insulin and β2 adrenergic receptors and seems to occur only in the presence of metabolic acidosis