Advanced Cardiovascular Life Support (ACLS) Practice Exam

When is the use of epinephrine recommended during cardiac arrest?

1. Only in cases of bradycardia

2. In all cardiac arrest scenarios

3. Only during respiratory distress

4. During ventricular tachycardia

The correct answer is: In all cardiac arrest scenarios

Epinephrine is recommended during all cardiac arrest scenarios due to its vasoconstrictive properties, which increase blood flow to the heart and brain during conditions of reduced perfusion. This medication enhances the chances of restoring a spontaneous circulation (ROSC) when given during cardiopulmonary resuscitation (CPR). Clinical guidelines emphasize the importance of administering epinephrine every 3-5 minutes during cardiac arrest, particularly in cases of pulseless electrical activity (PEA) and asystole, where its administration can significantly improve outcomes. In contrast, the other scenarios mentioned do not align with the primary indications for epinephrine use during cardiac arrest. For example, bradycardia and respiratory distress situations may require different management strategies, such as pacing or establishing an airway, rather than immediate use of epinephrine. Additionally, ventricular tachycardia may necessitate different treatments, especially if it is stable with a pulse. Therefore, the broad application of epinephrine across all cardiac arrest cases is vital in maximizing resuscitation efforts.