title: Hemorrhagic disease of the newborn: an unusual etiology of neonatal bleeding.
abstract: Emergency physicians may encounter presentations of bleeding in the neonate that have multifactorial etiologies. A case of a 15-day-old male infant with umbilical bleeding that exhibited many of the characteristic features of hemorrhagic disease of the newborn (nonmedically attended birth, breastfeeding, no definite history of Vitamin K administration, bleeding from iatrogenic puncture sites, and isolated prolongation of the prothrombin time and partial thromboplastin time) is presented. A differential diagnosis and laboratory evaluation of bleeding in the newborn are summarized, and treatment recommendations for hemorrhagic disease of the newborn are discussed.
mesh_terms: D001780:Blood Coagulation Tests; D036861:Delivery, Obstetric; D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D007231:Infant, Newborn; D007273:Injections, Intramuscular; D008297:Male; D008880:Midwifery; D014472:Umbilicus; D014812:Vitamin K / Q000008:administration & dosage; D006475:Vitamin K Deficiency Bleeding / Q000150:complications* / Q000453:epidemiology / Q000517:prevention & control
chemical_list: D014812:Vitamin K