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Salicylate poisoning — RCPSC EM MCQ

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HardToxicologySalicylate poisoningRCPSC EM

A patient with delayed salicylate poisoning has confusion, pulmonary edema, creatinine 210 µmol/L, pH 7.40 with mixed respiratory alkalosis and metabolic acidosis, and a level of 3.1 mmol/L. What is the priority plan?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: DStart bicarbonate alkalinization and arrange urgent dialysis with poison-centre input

Explanation lettering: B = shown as A · C = shown as B · E = shown as C · A = shown as D · D = shown as E

A is correct: CNS toxicity, lung injury and renal impairment in delayed toxicity are dialysis indications regardless of a deceptively normal pH; alkalinization begins while dialysis is arranged. B ignores the mixed disorder. C can cause abrupt acidemia. D promotes systemic acidosis. E delays definitive elimination.

Reference: Ontario Poison Centre, Salicylates protocol: https://www.ontariopoisoncentre.ca/siteassets/pdfs/english/protocols/salicylates_4-pages.pdf