Final answer:
When an infant is undergoing CPR without a pulse despite an organized rhythm, the correct intervention is to perform chest compressions. These should be carried out until spontaneous heart activity resumes or the patient is declared deceased. Other interventions like AED or epinephrine might follow according to ACLS or PALS protocols.
Step-by-step explanation:
Correct Intervention for an Infant with No Pulse and an Organized Rhythm
When an infant presents with CPR in progress and a cardiac monitor indicates an organized rhythm with a rate of 70 but without a pulse, the correct intervention is to perform chest compressions. This is based on the current CPR guidelines, which emphasize the importance of high-quality chest compressions to maintain blood flow, particularly to the brain. The action of manually compressing the blood within the heart by applying pressure to the sternum can help circulate the blood into the pulmonary and systemic circuits.
It's essential to continue CPR until the infant regains spontaneous contraction or is declared deceased by an experienced healthcare professional. The use of an Automated External Defibrillator (AED) is not the first choice in this scenario as the infant already shows an organized rhythm, and AEDs are primarily for instances of cardiac or ventricular fibrillation. Oxygen administration and epinephrine may be subsequent steps following established Advanced Cardiac Life Support (ACLS) or Pediatric Advanced Life Support (PALS) protocols as necessary.