Adder bite anaphylaxis — DipIMC MCQ

Correct answer: B — Adrenaline 500 micrograms IM

Option B is correct because Systemic allergic features with shock after a bite are treated as anaphylaxis with IM adrenaline. Option A is less appropriate because that dose is an ALS cardiac-arrest dose and is unsafe for this non-arrest indication; option E is less appropriate because aspirin is useful in ACS but inappropriate for this presentation. Option D is less appropriate because untitrated opioid dosing can cause avoidable hypotension or respiratory depression; option C is less appropriate because steroids have delayed onset and should not replace the immediate treatment. Clinical pearl: in DipIMC-style questions, the best answer is the intervention that changes outcome earliest in the pre-hospital phase.

Reference: Resuscitation Council UK Guidelines