Final answer:
Pre-arrival interventions for cardiac arrest patients can be beneficial if administered promptly. CPR is recommended before using a defibrillator. Automated external defibrillators (AED) found in public places are designed for lay persons and provide verbal instructions.
Step-by-step explanation:
According to the companion document, pre-arrival interventions for a cardiac arrest patient can be beneficial if administered promptly. CPR is recommended in many cases before using a defibrillator. Automated external defibrillators (AED) are found in many public places and are designed to be used by lay persons. The device automatically diagnoses the patient's heart condition and provides verbal instructions for use.