Welcome a new superstar blogger, Dr. Todd Seigel (@ToddSeigelMD), to the ever-growing ALiEM team. I first met Todd at the recent Society of Academic Emergency Medicine meeting. At that time, he was an already established clinician-scholar-educator at Brown University. He had already graduated from residency and was returning to fellowship training to get his board-certification in Critical Care Medicine. I’m thrilled that he is now at my home institution (UCSF) doing this fellowship, where I couldn’t resist recruiting him to join our all-star cast of blog authors. Today is the first of hopefully a long series of critical care/resuscitation topics that are practically relevant for all practicing emergency physicians.