Table 1.

Summary of cardiac arrest events and actions

TIME ELAPSED, MIN	RESUSCITATION EVENTS AND ACTIONS
0	Patient becomes unresponsive and exhibits decorticate rigidity
	Pulseless polymorphic VT
	CPR started
1	First defibrillation with 200 J
3	Pulseless VF
	Second defibrillation with 200 J
4	1 mg of IV epinephrine administered (dose 1)
5	Pulseless polymorphic VT
	Third defibrillation with 200 J
7	1 mg of IV epinephrine administered (dose 2)
8	ROSC with return of consciousness (spontaneous movements)
	CPR stopped
9	Loss of consciousness
	Re-arrest with pulseless polymorphic VT
	CPR resumed
	Patient makes purposeful movements against CPR provider
10	CPR stopped
	Patient loses consciousness
	Pulseless polymorphic VT
	Fourth defibrillation with 200 J
	Patient cries out with defibrillation
	CPR resumed immediately
11	Patient makes purposeful movements against CPR provider
	CPR stopped
	Pulseless VF with no consciousness
	CPR resumed
12	Pulseless VF with no consciousness
	Fifth defibrillation with 200 J
	CPR resumed immediately
	Patient makes purposeful movements against CPR providers
	No palpable pulse
	CPR resumed
	4-point restraint applied
13	2 g of IV magnesium sulfate administered
14	300 mg of IV amiodarone administered
15	Pulseless VT
	Sixth defibrillation with 200 J
16	1 mg of IV epinephrine administered (dose 3)
17	ROSC

CPR—cardiopulmonary resuscitation, IV—intravenous, ROSC—return of spontaneous circulation, VF—ventricular fibrillation, VT—ventricular tachycardia.