The baby born at 32 weeks’ gestation to a mother who is hepatitis B surface antigen negative (HBsAg-negative) is taken to the Neonatal Intensive Care Unit (NICU) for care. The neonate, who weighs 1.8 kg, requires continuous positive airway pressure of 7 cm H20, intravenous fluids containing dextrose, and intravenous caffeine. After getting consent from the mother, when is the most appropriate time to administer the hepatitis B vaccine to the baby?

Question

The baby born at 32 weeks&rsquo; gestation to a mother who is hepatitis B surface antigen negative (HBsAg-negative) is taken to the Neonatal Intensive Care Unit (NICU) for care. The neonate, who weighs 1.8 kg, requires continuous positive airway pressure of 7 cm H20, intravenous fluids containing dextrose, and intravenous caffeine. After getting consent from the mother, when is the most appropriate time to administer the hepatitis B vaccine to the baby?

Accepted Answer

At one month of age. For neonates who are less than 2 kg at birth, the hepatitis B vaccine is administered when they reach 1 month of age (regardless of when they reach 2 kg or their weight at 1 month of age). Infants born greater than 2 kg must receive the hepatitis B vaccine within 24 hours of birth. As soon as possible and before discharge are not the most appropriate times to administer the hepatitis B vaccine.

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