Tip 101: vitamin K deficiency bleeding

Also known as haemorrhagic disease of the newborn, vitamin K deficiency bleeding is defined as a bleeding disorder in which the coagulation is rapidly corrected by vitamin K supplementation and is suggested by an INR of 4 with a normal platelet and fibrinogen count.

It presents either: early (within 24 hours of birth); classical (1 – 7 days of age); late (2 – 12 weeks of age).

Reference: Lippi, G., & Franchini, M. (2011). Vitamin K in neonates: facts and myths. Blood Transfusion9(1): 4. 

Previously published: 06/05/14, 23/04/15

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