Neonatal resuscitation is the series of steps medical teams use to help a newborn breathe and establish a heartbeat in the moments after birth. About 10% of newborns need some help to start breathing, and roughly 1% require intensive interventions to restore heart and lung function. Most of the time, simple actions like drying, warming, and gentle stimulation are enough. But when they’re not, a structured sequence of escalating support can mean the difference between a healthy outcome and a life-threatening emergency.
Why Newborns Sometimes Need Help Breathing
Before birth, a baby’s lungs are filled with fluid, and all oxygen comes from the placenta through the umbilical cord. The moment a baby is born, an extraordinary shift has to happen in seconds. With the first breath, the blood vessels in the lungs relax and open wide, allowing blood to flow through them for the first time. Simultaneously, when the umbilical cord is clamped, the low-resistance pathway to the placenta disappears, and blood pressure in the baby’s body rises. This pressure change forces a small flap inside the heart (between the upper chambers) to close, redirecting blood flow so it now passes through the lungs to pick up oxygen instead of bypassing them.
Oxygen itself plays an active role. Higher oxygen levels cause the ductus arteriosus, a small blood vessel that shunted blood away from the lungs during fetal life, to constrict and close. Within about 10 minutes, blood flow through this vessel reverses direction entirely, sending more blood into the lungs. When this cascade of changes happens smoothly, the baby transitions to breathing air on its own. When it doesn’t, the baby may be limp, blue, or gasping, and the resuscitation team steps in.
The Golden Minute
The first 60 seconds after birth are called the “golden minute,” and the goal is straightforward: if the baby isn’t breathing well on its own, begin assisted ventilation before that minute is up. The clock starts immediately.
In the first 30 seconds, the team performs what are called the initial steps. The baby is positioned with the head in a neutral or slightly extended position to open the airway, then dried thoroughly with a warm towel. Drying serves double duty: it removes heat-robbing moisture and provides tactile stimulation that often prompts the baby to cry and breathe. If the mouth or nose is blocked, gentle suctioning clears the airway. For babies born through meconium-stained fluid (meaning the baby passed stool before delivery), the team watches closely for airway obstruction and clears it if it’s preventing effective breathing support.
At around 30 seconds, the team checks two things: Is the baby breathing? Is the heart rate above 100 beats per minute? If the answer to either question is no, assisted ventilation begins before the 60-second mark. Current guidelines also recommend delaying cord clamping for at least 60 seconds when the situation allows, as this gives the baby additional blood volume from the placenta.
Positive Pressure Ventilation
The single most important intervention in neonatal resuscitation is getting air into the baby’s lungs. Positive pressure ventilation, or PPV, uses a small mask placed over the baby’s nose and mouth connected to a device that delivers controlled puffs of air. For full-term babies, this starts with room air (21% oxygen), the same concentration we all breathe. For premature babies born before 35 weeks, the starting oxygen concentration is slightly higher, between 21% and 30%.
These oxygen levels may sound surprisingly low, but there’s a physiological reason. A newborn’s blood oxygen saturation is naturally only about 60% at one minute of life and climbs gradually to around 85% by five minutes. Flooding a newborn with 100% oxygen right away can cause tissue damage, especially in premature infants. The team uses a pulse oximeter on the baby’s right hand to monitor oxygen levels in real time and adjusts accordingly.
After 15 seconds of PPV, the team looks for visible chest movement, the clearest sign that air is reaching the lungs. If the chest is rising, they continue for a total of 30 seconds and reassess. If the chest isn’t moving, they work through a series of corrective steps: repositioning the head, clearing the airway again, adjusting the mask seal, or increasing pressure. If none of that works, the baby needs an alternative airway, typically a small breathing tube placed directly into the windpipe.
Chest Compressions
If 30 seconds of effective ventilation (with visible chest rise, ideally through a breathing tube) still hasn’t brought the heart rate above 60 beats per minute, the team begins chest compressions. This is rare. The vast majority of newborns who need resuscitation respond to ventilation alone, because the most common cause of a slow heart rate in a newborn is simply that the lungs haven’t inflated yet.
Compressions in a newborn look different from adult CPR. The preferred technique uses two thumbs placed on the lower third of the breastbone, with the hands wrapped around the baby’s chest for support. At this stage, oxygen is increased to 100%. The team compresses the chest at a rhythm coordinated with breaths, delivering three compressions followed by one breath in a repeating cycle. After 60 seconds of compressions, the heart rate is checked again.
When Medications Are Needed
If 60 seconds of chest compressions combined with ventilation still hasn’t raised the heart rate above 60 beats per minute, the team administers epinephrine (adrenaline). This happens in a small fraction of resuscitations. The preferred route is through an intravenous line or a catheter placed in the umbilical vein, because the drug reaches the heart faster and at higher concentrations through the bloodstream. A dose given through a breathing tube is sometimes used as a bridge while vascular access is being established, but it produces lower and more delayed drug levels in the blood.
What Triggers the Need for Resuscitation
Several conditions make resuscitation more likely. Premature birth is one of the biggest risk factors, because the lungs may not be developed enough to inflate easily. Other common triggers include prolonged or complicated labor, umbilical cord problems (like a cord wrapped tightly around the neck), placental issues that reduce blood flow, infections, and certain birth defects. In many cases, the medical team knows ahead of time that a baby is at higher risk and has additional trained personnel standing by in the delivery room.
Some resuscitations, though, are completely unexpected. That’s why guidelines call for at least one person skilled in newborn ventilation to be present at every birth, regardless of how low-risk the pregnancy appears.
How the Process Escalates
Neonatal resuscitation follows a deliberate staircase pattern. Each step is tried for a set period before moving to the next, and most babies respond early in the sequence. The progression looks like this:
- Warmth, drying, stimulation (first 30 seconds): enough for the majority of newborns who just need a little encouragement.
- Positive pressure ventilation (by 60 seconds): the critical intervention for babies who aren’t breathing or whose heart rate is below 100.
- Chest compressions (after 30 seconds of effective ventilation): added only if the heart rate stays below 60 despite good lung inflation.
- Epinephrine (after 60 seconds of compressions): reserved for the small number of babies whose hearts don’t respond to ventilation and compressions together.
At every stage, the team reassesses. A baby whose heart rate climbs above 100 and who starts breathing on their own can be moved to routine care at any point in the sequence.
Temperature Control Throughout
Keeping the baby warm is not a minor detail. It’s woven into every step of resuscitation. Newborns lose heat rapidly, and hypothermia increases oxygen demand, making an already struggling baby work harder. The resuscitation happens under a radiant warmer, wet linens are removed immediately, and for very premature babies, plastic wrapping is often used to prevent heat loss through evaporation. Current guidelines emphasize thermoregulation as one of the core goals alongside breathing and heart rate.
The Role of Trained Teams
Neonatal resuscitation is a team effort that depends on preparation and practice. The Neonatal Resuscitation Program (NRP), developed by the American Heart Association and the American Academy of Pediatrics, is the standard training framework used in hospitals across the United States and many other countries. The most recent international consensus, published in 2025 by the International Liaison Committee on Resuscitation, reviewed evidence across 40 clinical questions covering every part of the resuscitation algorithm.
What makes neonatal resuscitation distinct from resuscitating older children or adults is the focus on the lungs rather than the heart. In adults, cardiac arrest is usually a heart problem first. In newborns, it’s almost always a breathing problem first. Get air into the lungs, and the heart typically follows. That single principle drives the entire approach: ventilation is the priority, and everything else is support for when ventilation alone isn’t enough.