By what age should the hepatitis B vaccine series be completed?

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Prepare for Pediatrics Exam 2 focusing on early childhood care. Use our multiple choice questions and detailed explanations to enhance your understanding. Ace your exam!

Multiple Choice

By what age should the hepatitis B vaccine series be completed?

Explanation:
The hepatitis B vaccine is given as a 3-dose series, with the final dose placed in the 6–18 month window. The first dose is given at birth, the second at about 1–2 months, and the third at 6–18 months. Because the full protection comes from completing all three doses, the latest acceptable time to have the series finished is around 18 months of age. Finishing earlier would cut off the final dose, while waiting until 2 years would miss the recommended completion window, though catch-up schedules exist if a dose is delayed.

The hepatitis B vaccine is given as a 3-dose series, with the final dose placed in the 6–18 month window. The first dose is given at birth, the second at about 1–2 months, and the third at 6–18 months. Because the full protection comes from completing all three doses, the latest acceptable time to have the series finished is around 18 months of age. Finishing earlier would cut off the final dose, while waiting until 2 years would miss the recommended completion window, though catch-up schedules exist if a dose is delayed.

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