MSFinals-6701

MSFinals-6701

A patient in their mid-40s is transferred from a District General Hospital to the Burns and Trauma Centre. They arrive intubated. The history is that they were on some scaffolding holding a pole, which they touched onto an overhead powerline, causing electrocution. They fell backwards and were found to be in ventricular fibrillation (VF) arrest by paramedics, who resuscitated them with defibrillation. They have small burns on their hands and also their left foot. On arrival at the Trauma Centre, they have a full CT traumagram which showed no other injuries. Their C-spine has been radiologically cleared. You are examining them, and you notice they have a swollen, tight left leg. The nurse brings you their blood gas, and you see they have a potassium level of 6.3 and they have mild metabolic acidaemia, with a pH of 7.21. Their urine is tea-coloured (catheter in situ), with a creatine kinase (CK) level of 1232.
What is the best course of action?