Neonatal Intensive Care Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
corrected gestational age
A method of calculating an infant's developmental age by adjusting chronological age based on how early the infant was born relative to full term.
ECMO
A life-support technique that provides cardiac and respiratory support to critically ill neonates by circulating blood o...
ELBW
Extremely low birth weight - birth weight less than 1000 grams (2.2 pounds).
exchange transfusion
Procedure removing infant's blood while simultaneously replacing it with donor blood to treat severe hyperbilirubinemia.
extremely low birth weight
A classification for infants born weighing less than 1,000 grams (2 pounds, 3 ounces), representing the most critically...
extubation
Removal of an endotracheal tube from a patient who no longer requires mechanical ventilation.
fetal alcohol spectrum disorder
A range of conditions affecting children exposed to alcohol in utero, causing physical, behavioral, and learning disabil...
FiO2
Fraction of inspired oxygen; the percentage of oxygen in the gas mixture delivered to a patient.
FRC
Functional residual capacity - the volume of air remaining in the lungs after normal expiration.
gastroschisis
A congenital abdominal wall defect resulting in herniation of intestines outside the abdominal cavity.
gavage feeding
Method of delivering nutrition through a tube inserted into the stomach via nose or mouth.
germinal matrix
Highly vascularized region in the developing brain prone to hemorrhage in preterm infants.
germinal matrix hemorrhage
Bleeding in the fragile vascular area of the developing brain, most common in preterm infants.
gestational diabetes
A form of diabetes that develops during pregnancy, affecting maternal glucose metabolism and potentially impacting fetal...
high-frequency oscillatory ventilation
A specialized ventilation technique that delivers very small tidal volumes at extremely high respiratory rates to minimi...
hydrocephalus
Abnormal accumulation of cerebrospinal fluid within the brain ventricles, requiring neurosurgical intervention in neonat...
hyperalimentation
Complete intravenous nutrition providing all calories, proteins, fats, vitamins and minerals through a central venous ca...
hyperbilirubinemia
An elevated level of bilirubin in the blood, commonly causing jaundice in newborns.
hyperoxia test
A diagnostic test used to differentiate between cyanotic congenital heart disease and pulmonary causes of hypoxemia in n...
hypocalcemia
Abnormally low blood calcium levels in newborns, which can cause seizures and other serious complications.
hypoglycemia
Abnormally low blood glucose levels in newborns, typically below 40-45 mg/dL depending on institutional protocols.
intraventricular hemorrhage
Bleeding into the brain's ventricular system, most commonly affecting premature infants.
intubation
Insertion of an endotracheal tube through the mouth or nose into the trachea to maintain an airway.
IUGR
Intrauterine growth restriction - fetal growth below the 10th percentile for gestational age.
kangaroo mother care
Skin-to-skin contact practice where the infant is placed on the parent's chest for thermal regulation and bonding.