Practise 18 single best answer questions on allergy for the MRCEM SBA exam. Every question comes with a detailed explanation, so you learn why the right answer is right and why the others are wrong.
Anaphylaxis needs fast, correct treatment. Questions test the Resuscitation Council UK algorithm, including when to repeat adrenaline and when to escalate.
A 40-year-old man collapses at a food festival after eating peanut oil. Paramedics gave 0.5 mg IM adrenaline 7 minutes ago. On arrival he is confused and wheezy, with HR 122, BP 86/50 mmHg and SpO₂ 94%.
What is the most appropriate next step?
A. Give a second dose of IM adrenaline
B. Give IV chlorphenamine and hydrocortisone
C. Observe for 30 minutes
D. Start an IV adrenaline infusion
E. Measure serum tryptase
Answer: A. If there is no improvement 5 minutes after IM adrenaline, the dose is repeated. An adrenaline infusion is considered for refractory anaphylaxis, after two IM doses. Antihistamines and steroids are not first-line treatments.
Try 20 free sample questions to see the style and explanations, then choose the plan that suits you.