Final answer:
In a case of unresponsiveness and abnormal breathing, the correct course of action is to begin chest compressions. Administering naloxone and obtaining an automated external defibrillator may be relevant in specific situations, but chest compressions are the primary response.
Step-by-step explanation:
In a case of unresponsiveness and abnormal breathing, activating the emergency response team is crucial. The correct course of action would be to A) begin chest compressions. Chest compressions are a vital part of CPR (cardiopulmonary resuscitation) and help maintain blood circulation when the heart has stopped.
A) Administering naloxone (a drug used to reverse opioid overdose) would be relevant in cases specifically related to opioid overdose, but it may not be the appropriate response in all cases of unresponsiveness and abnormal breathing.
C) Providing rescue breaths is also an important component of CPR, but in this scenario, it is best to start with chest compressions as the primary response.
D) Obtaining an automated external defibrillator (AED) is important in cases of cardiac arrest, where the heart stops beating. However, in this scenario, the question mentions abnormal breathing, not cardiac arrest, so this would not be the initial response.