Possible complications may include: infection, bleeding, dysrhythmias and high blood sugar. One review found an increased risk of pneumonia and sepsis but not the overall risk of infection. Another review found a trend towards increased bleeding but no increase in severe bleeding.  Hypothermia induces a "cold diuresis" which can lead to electrolyte abnormalities – specifically  hypokalemia, hypomagnesaemia, and hypophosphatemia, as well as hypovolemia.