TY - CHAP M1 - Book, Section TI - The Newborn Infant A1 - Smith, Danielle A1 - Grover, Theresa A2 - Hay, Jr., William W. A2 - Levin, Myron J. A2 - Deterding, Robin R. A2 - Abzug, Mark J. Y1 - 2018 N1 - T2 - Current Diagnosis & Treatment: Pediatrics, 24e AB - The newborn period is defined as the first 28 days of life. In practice, however, sick or very immature infants may require neonatal care for many months. There are three levels of newborn care. Level 1 refers to basic care of well newborns, neonatal resuscitation, and stabilization prior to transport. Level 2 refers to specialty neonatal care of premature infants greater than 1500 g or more than 32 weeks’ gestation. Level 3 is subspecialty care of higher complexity ranging from 3A to 3C based on newborn size and gestational age. Level 4 includes availability of general surgery, cardiac surgery, and extracorporeal membrane oxygenation (ECMO). Level 4 care is often part of a perinatal center offering critical care and transport to the high-risk mother and fetus as well as the newborn infant. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2022/05/18 UR - accessmedicine.mhmedical.com/content.aspx?aid=1153302816 ER -