Which of the Following BEST Describes the Continued Need for Prehospital

Which of the following BEST describes the continued need for prehospital advanced cardiac life support,even when EMTs in the community carry AEDs?

A) Not all cardiac arrests are due to problems that respond to defibrillation.
B) The patient may need medications to support his cardiac rhythm and blood pressure prior to attempting defibrillation.
C) In cases of refractory or recurrent ventricular fibrillation, the use of medications may decrease the chances of defibrillating successfully.
D) All of the above