A newborn is born to a mother who tested positive for hepatitis B surface antigen (HBsAg) during her prenatal care. The nurse is preparing to administer the required prophylactic medications within the first 12 hours of birth. Which statement best explains why both the hepatitis B vaccine AND hepatitis B immune globulin (HBIG) are given together rather than the vaccine alone?
- The vaccine provides long-term immunity, while HBIG provides immediate passive antibody protection before the vaccine takes effect.
- The vaccine alone is insufficient because newborns cannot absorb intramuscular medications effectively in the first 12 hours.
- Administering both together reduces the required dose of each individual medication, minimizing side effects.
- The HBIG stimulates the newborn's own immune system to produce antibodies faster than the vaccine alone.