Hypervolaemia may occur if the dosage and rate of infusion are too high. At the first clinical signs of cardiovascular overload (headache, dyspnoea, jugular vein congestion), increased blood pressure, raised central venous pressure and pulmonary oedema, the infusion is to be stopped immediately and the patient's haemodynamic parameters carefully monitored. Additionally, diuresis and cardiac output should be increased according to the severity of the clinical situation.