What is the immediate action required for a newborn with a heart rate under 60 bpm?

When a newborn presents with a heart rate under 60 bpm, the immediate action required is to initiate chest compressions. This situation is indicative of potential cardiac arrest or severe bradycardia, which can lead to inadequate perfusion of vital organs and tissues.

In a newborn, any heart rate below 60 bpm, especially when associated with apnea or weak respiratory effort, is considered critical, and immediate intervention is crucial. Chest compressions help to mechanically circulate blood and maintain blood flow to the heart and brain. This is vital in providing a chance for the baby's heart to respond and regain a normal rhythm.

While oxygen administration, checking for airway obstruction, and beginning rescue breaths are all important components of neonatal care, they do not address the immediate need for circulatory support in this specific situation. In the absence of a sufficient heart rate, ensuring adequate blood flow through chest compressions takes precedence.