Question: A premature newborn presents at 2 days of life a picture of poor general condition, subcutaneous petechiae and ecchymoses and persistent bleeding from the puncture sites. The chest radiograph is compatible with pulmonary hemorrhage. In the coagulation study, prothrombin and partial thromboplastin times are elongated. The platelet count is 105,000 / uL. What is the most likely diagnosis? 
 Options:  <1> Disseminated intravascular coagulation secondary to neonatal sepsis. <2> Neonatal autoimmune thrombocytopenia. <3> Neonatal alloimmune thrombocytopenia. <4> Hemorrhagic disease of the newborn due to vitamin K deficiency. <5> Neonatal hemorrhage due to platelet dysfunction.
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