Respiratory · UKMLA & AKT
Urticaria and angioedema
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise urticaria and angioedema — the full SA Note notes add investigations, management, complications and 10 practice questions.
Key high-yield points
- Urticaria - superficial dermal weal (pale/red swelling) with surrounding erythema flare, intense pruritus, individual lesions resolve within 24 hours
- Angioedema - deep dermal/subcutaneous swelling, less itchy, potentially life-threatening if laryngeal
- Laryngeal angioedema - stridor, hoarseness, dysphagia = airway emergency
If lesions persist >24 hours, are painful, non-blanching, and leave pigmentation - consider vasculitic urticaria, not simple urticaria.
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