I'm no expert but at least in the initial stages of resuscitation, the cost is relatively low. Paramedics doing CPR, defibrillation, some epinephrine, then in the ER they'll intubate, get some lines in, push more epi and maybe amiodarone - pretty basic stuff that's more about doing it fast than expensive equipment. I don't think it adds up to a ton… well yes American healthcare is absurdly expensive, but this particular aspect isn't extraordinary. The initial resuscitation steps are about timing, not fancy drugs