Towards the end of the episode, pathologist Dr. Sam Ryan is driving off to speak to a survivor - who is in a coma and on a ventilator. A phone call to the hospital would have saved her making the trip.
When the boat brings in the first "body", Dr. Ryan checks it and then shouts that there is still a pulse (i.e. the heart is beating). She proceeds immediately to give CPR, which would only be done on a victim with no pulse.