ACLS ProMed Practice Test

ECMO is used as a rescue therapy in ACLS when the heart and lungs cannot be supported adequately by standard resuscitation, buying time to treat the reversible problem and stabilize the patient. This approach, sometimes called ECPR, provides both circulatory support and oxygenation, effectively bridging to recovery or to definitive treatment. It is not a routine first-line step in every arrest, and it is not absent from ACLS protocols; rather, it is a specialized option reserved for cases where conventional therapies have failed to restore circulation or stabilize cardiogenic shock, and only if a capable center with the necessary resources, expertise, and rapid access is available. It is more than simply “used after failure”; it requires a demonstrated reversible cause, favorable timing, and a facility equipped to deploy ECMO quickly and safely.