A Baby With Bruises

A 7-day-old female infant presented to the emergency department with a chief complaint of bruises. She was found to have severe coagulopathy. Initial management focused on identifying and treating complications of the coagulopathy without causing harm to the patient. Further workup was performed with the assistance of hematology experts to determine the underlying cause. Ultimately, the patient's diagnosis was determined by a single laboratory test. This patient's presentation allows us to review the workup of neonatal coagulopathy with special attention to potential pitfalls one might encounter in the management of these patients.