Autism spectrum disorder — MCCQE Part 1 MCQ

Correct answer: D — Refer for autism assessment and early developmental intervention

Refer for autism assessment and early developmental intervention is the single best answer because the age, timing, examination findings and investigations in the vignette fit Autism spectrum disorder better than the alternatives. The most tempting distractor is less appropriate because it either treats a neighbouring presentation, delays a time-critical intervention, or ignores a key discriminator in the stem. The remaining options are suboptimal because they would miss the diagnosis, use an investigation or treatment in the wrong sequence, or fail to address safety and follow-up. Canadian practice should be anchored to CPS autism spectrum disorder guidance, with attention to acuity, safety-netting and local provincial pathways.

Reference: CPS autism spectrum disorder guidance