Allergy and Dermatology
Differentiate allergic, inflammatory, infectious and life-threatening skin presentations.
How to prepare for MRCEM SBA
Build clinical synthesis across stable adult care, resuscitation, injury, paediatrics, procedures and complex decisions while preserving the full RCEM clinical-syllabus breadth.
Core concepts
Concept 1
Urticaria, angioedema, anaphylaxis follow-up, drug eruptions, erythema patterns, blistering disease, cellulitis mimics and dermatological red flags.
Exam cue: Identify diagnosis, investigation, immediate treatment, longer management, disposition or professional action in the lead-in.
Concept 2
Use morphology, distribution, mucosal involvement, systemic features, exposure and time course to select diagnosis and disposition.
Exam cue: Use acuity, age, physiology, time course, comorbidity and response to treatment to rank plausible options.
Concept 3
Recognise evolving airway compromise, severe cutaneous adverse reactions, sepsis and immunocompromised-host risk.
Exam cue: Choose the single fully correct action at this point in care and know when senior, specialty or critical-care escalation is required.
Concept 4
Use the current Year 1-3 RCEM capabilities and the full clinical syllabus at the understanding-and-applying level expected before higher specialist training.
Risk pitfalls and guardrails
Choosing a rash diagnosis from colour alone without lesion type, blanching, mucosa, medicines and systemic state.
Guardrail: Do not choose an option merely because it is true; select the one that fits the exact patient, urgency and time point.
Choosing a true statement that does not answer the exact time point or clinical task.
Guardrail: Do not choose an option merely because it is true; select the one that fits the exact patient, urgency and time point.
Inventing a paper-specific or subcategory weighting that RCEM has not published.
Guardrail: Do not choose an option merely because it is true; select the one that fits the exact patient, urgency and time point.
Memory anchors
Allergy and Dermatology: scope
Urticaria, angioedema, anaphylaxis follow-up, drug eruptions, erythema patterns, blistering disease, cellulitis mimics and dermatological red flags.
Allergy and Dermatology: clinical synthesis
Use morphology, distribution, mucosal involvement, systemic features, exposure and time course to select diagnosis and disposition.
Allergy and Dermatology: safety boundary
Recognise evolving airway compromise, severe cutaneous adverse reactions, sepsis and immunocompromised-host risk.
Allergy and Dermatology: common trap
Choosing a rash diagnosis from colour alone without lesion type, blanching, mucosa, medicines and systemic state.
Allergy and Dermatology: MRCEM SBA sequence
Identify the clinical task and acuity, synthesise history, examination and investigations, choose the safest evidence-based decision, then check disposition and escalation.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A 34-year-old woman develops wheeze, stridor, widespread urticaria and a blood pressure of 78/44 mmHg within minutes of receiving intravenous co-amoxiclav. What is the most appropriate first drug treatment?
A 26-year-old man has migratory itchy wheals after eating shellfish. He has no tongue swelling, breathing difficulty, dizziness or hypotension, and his observations are normal. What is the most appropriate initial treatment?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
What is Pass Harbor?
Completely free exam prep for 247 UK exams.
- Practice questions
- Flashcards
- Study guides
- Mock exams
- No registration
- No paywall
- Start instantly
“No more expensive exam prep. Quality study tools should be accessible to everyone.”