Newborn Vitamin K Prophylaxis

Vitamin K is a routine newborn medication given shortly after birth to prevent vitamin K deficiency bleeding, or VKDB. This is a preventable bleeding disorder that occurs when a newborn does not have enough vitamin K to produce functional clotting factors. VKDB can cause bleeding from visible sites such as the umbilical stump or heel-stick punctures, but the most serious bleeding can occur internally, especially in the intestines or brain. The CDC notes that VKDB may have no warning signs and that infants who do not receive vitamin K at birth can develop VKDB up to 6 months of age. At the RN level, vitamin K is not just a medication-administration task. The RN must understand the physiology of newborn coagulation, risk stratification, parent counselling, refusal management, escalation of abnormal bleeding, and how vitamin K fits into broader newborn safety care.