Follow protocol for presumptive underlying medical condition
Maintain patent airway and give oxygen
Ventilate as needed 8-10X/min; do NOT over ventilate
Continue cardiac monitoring; obtain and transmit a 12-lead EKG to receiving hospital
If cause is suspected cardiac, transport to hospital with 24-hour cardiac cath lab
If cause is suspected trauma, follow Trauma Triage Guidelines
If patient is not alert, transport to hospital capable of post-resuscitative cooling or targeted temperature management
Aggressively treat hypotension (SBP < 90) with fluid bolus and push dose epinephrine (0.5-2.0 ml of a 10 mcg/ml solution every 2-5 minutes (5-20 mcg) per hypotension protocol