On our last SIM session, we discussed about the timing of the drug administration during cardiac arrest, and to check or not check the rhythm prior to the drug administration.
NZ resus guidelines recommends;
“Adrenaline (1 mg), when indicated, should be administered after rhythm analysis (± shock), at the time of recommencement of CPR [Class A; Expert consensus opinion].”
“Amiodarone (300 mg) should be administered after the third failed attempt at defibrillation, at the time of recommencement of CPR [Class A; LOE II]”
It is also worth checking out the UK Resus Council Guideline for Prehospital Resuscitaion. It talks about Pit Crew approach (described as the Circle of Life), and even gives some advise on how to perform intubation etc.