Final answer:
The EMS crew should begin resuscitation immediately. The patient's condition indicates a potential cardiac arrest, and immediate resuscitation efforts can greatly increase the chances of survival.
Step-by-step explanation:
The EMS crew should begin resuscitation immediately. The patient's condition, being pale, pulseless, apneic, and warm to the touch, indicates a potential cardiac arrest. Time is of the essence in such cases, and immediate resuscitation efforts, including CPR and defibrillation if necessary, can greatly increase the chances of survival.