Derm Vivas ·
Patch testing and contact dermatitis work-up — Viva
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Q1: Definition (2 min)
What is patch testing designed to diagnose? How does it differ from prick testing and from the clinical diagnosis of irritant contact dermatitis?
Q2: Technique (3 min)
Describe ESCD-aligned technique: site, chambers, vehicles, patient instructions, and the D2 / D3–D4 / D7 schedule. Why is D7 mandatory?
Q3: ICDRG and relevance (3 min)
Walk through IR, ?+, +, ++, +++. Give an example of present vs past vs unknown relevance for nickel.
Q4: Series and occupation (2 min)
What is the European baseline series concept? Which supplements would you add for a healthcare worker with glove dermatitis vs a hairdresser with scalp/face flares?
Q5: Pitfalls and special tests (2 min)
Explain angry back, steroid-related false negatives, active sensitisation risk (e.g. PPD), photopatch indication, and when you use ROAT.