In the NICU, critically ill and premature babies receive specialized, around-the-clock care to support their fragile health. This often means using respiratory support to help with their breathing, especially important for little ones with underdeveloped or compromised lungs. This level of care requires constant vigilance from NICU teams, as these patients can have rapid changes in their respiratory status, and are also at risk for lung damage from respiratory support. By using transcutaneous CO2 monitoring, NICU teams can keep a constant eye on their status, which helps them fine-tune and optimize the support they need.