A 25-year-old male presents to your ED after sustaining an electrical injury while fixing cables on a city electrical pole. His work partner witnessed an arc of electricity coming off of his back just before he was thrown from the cable. His vital signs are T37, HR 130, BP 80/60, RR 36 and SpO2 92% on 10L face mask. What is your first step after your get him on the monitors in the resus bay?