hemorrhagic disease of newborn


hemorrhagic

 [hem″o-raj´ik] pertaining to or characterized by hemorrhage.hemorrhagic disease of newborn a self-limited hemorrhagic disorder of the first days of life, caused by deficiency of vitamin K–dependent blood coagulation factors II, VII, IX, and X.hemorrhagic fevers a group of viral diseases of diverse etiology but having many similar clinical characteristics: increased capillary permeability, leukopenia, and thrombocytopenia are common to all. The distribution of hemorrhagic fevers is worldwide but they occur mainly in the tropics; they are usually transmitted to humans by arthropod bites or contact with infected rodents. They are manifested by sudden onset, fever, headache, generalized myalgia, backache, conjunctivitis, and severe prostration, followed by various hemorrhagic symptoms, which result in focal inflammatory reaction and necrosis, with mild leukocytosis.