At birth, the newborn transitions from a fluid-filled intrauterine environment to an air-breathing extrauterine world. The first critical step involves the clearance of fluid from the alveoli, which is normally achieved through thoracic compression during vaginal delivery and subsequent absorption by pulmonary lymphatics. As the lungs fill with air, pulmonary vascular resistance drops drastically, allowing blood to flow through the lungs for oxygenation. Failure of this physiological adaptation leads to persistent pulmonary hypertension and neonatal asphyxia.
Immediately after delivery, every newborn undergoes a rapid evaluation using four key questions:
Answering no to any of these prompts signals the need for specialized intervention beyond routine care.
Healthy newborns who are term, breathing well, and have good muscle tone require routine care under a radiant warmer. This involves drying the infant thoroughly to prevent hypothermia, removing wet linen, and assessing color and respiration. Delayed cord clamping for at least 30 to 60 seconds is recommended for vigorous term and preterm infants to improve iron stores and reduce intraventricular hemorrhage.
If a newborn is apneic or gasping, position the head in a neutral 'sniffing' position to open the airway. Use a bulb syringe or suction catheter to clear secretions from the mouth and then the nose if heavy secretions obstruct breathing. Gentle tactile stimulation, such as rubbing the back or flicking the soles of the feet, can stimulate spontaneous respirations. Avoid vigorous or painful methods like slapping, as they cause physical harm.
Positive pressure ventilation is the single most important and effective step in neonatal resuscitation. Initiate PPV if the baby is apneic, gasping, or has a heart rate below 100 beats per minute after initial steps. Set the initial inflation pressure around 20 to 25 cm H2O at a rate of 40 to 60 breaths per minute. Monitor heart rate response using a pulse oximeter placed on the right wrist or hand, which reflects pre-ductal oxygen saturation.
Chest compressions are indicated when the heart rate remains below 60 beats per minute despite 30 seconds of effective positive pressure ventilation with chest movement. Use the two-thumb, encircling-hands technique on the lower third of the sternum. Deliver compressions to a depth of approximately one-third of the anteroposterior diameter of the chest. Coordinate compressions and ventilations in a 3:1 ratio, equating to 90 compressions and 30 breaths per minute.
Medications are rarely needed during neonatal resuscitation because bradycardia is usually caused by inadequate lung expansion rather than cardiac failure. If the heart rate remains below 60 beats per minute despite effective ventilation and chest compressions, epinephrine is indicated. Administer epinephrine intravenously via an umbilical venous catheter or intraosseously. The preferred concentration is 1:10,000 (0.1 mg/mL) administered rapidly.
Newborns who require resuscitation are at high risk for clinical deterioration after stabilization. Transfer the infant to a neonatal intensive care unit or special care nursery for continuous monitoring of vital signs, blood glucose, and neurological status. Maintain normothermia with target temperatures between 36.5°C and 37.5°C, as both hypothermia and hyperthermia worsen outcomes. Document all interventions, response times, and Apgar scores accurately in the medical record.