General practice & primary care · UKMLA & AKT
Urticaria
A free high-yield preview for the UKMLA Applied Knowledge Test, covering how to recognise this condition. The full SA Note notes add investigations, management and complications, with practice questions on this topic.
Key high-yield points
- Wheals (hives) - raised, pale, oedematous plaques with surrounding erythematous flare; intensely itchy
- Transient and migratory - individual lesions resolve within 24 hours, leaving no skin change
- Common triggers - insect stings, foods (nuts, shellfish), NSAIDs, aspirin, ACE inhibitors, antibiotics, viral infections
- Angio-oedema - deeper swelling of lips, tongue, eyelids; airway involvement is a red flag
A weal persisting >24 hours, painful rather than itchy, or leaving bruising suggests vasculitic urticaria - refer to dermatology; do not manage as standard urticaria.
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