Study Design The design of the study will be an open-label, correlational prospective study. The study population will be any neonate weighing greater than one kg at birth requiring an arterial catheter for monitoring for cardiorespiratory distress. At the end of my study, if it is found that the SenTec digital monitor is as accurate and valid as the ABG samples collected and that no adverse skin changes are observed, I hope that the SenTec monitoring system will be implemented into Memorial's regular NICU monitoring equipment. With approval from the SenTec manufacturer, I will aim to write a paper and submit it to an appropriate neonatal or critical care journal for future publication. In addition to the paper, I plan to create a poster for presentation to critical care (PICU and NICU) unit staff (physicians, RTs, RNs, and NPs) at Memorial University Medical Center.