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Delayed immunisation schedule — MCCQE Part 1 MCQ

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EasyVaccinationDelayed immunisation scheduleMCCQE Part 1

14-month-old child new to canada presents with missed routine infant vaccines. There is no reliable documentation of prior immunisation. Which of the following is the most appropriate next step?

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Correct answer: C — Use a catch-up schedule; do not restart documented valid series unnecessarily

Use a catch-up schedule; do not restart documented valid series unnecessarily is best because Canadian schedules support catch-up rather than restarting valid series. Use a United States screening schedule instead of Canadian guidance is suboptimal because MCCQE questions expect Canadian preventive-care guidance; Defer all preventive care until symptoms develop is suboptimal because screening and immunisation aim to prevent disease before symptoms; Order the most invasive test as routine first-line screening is suboptimal because screening should balance benefit, harm and resource use; Screen at every visit regardless of interval or prior results is suboptimal because over-screening causes avoidable false positives and harm. Provincial schedules vary but NACI principles guide catch-up.

Reference: Canadian Immunization Guide/NACI