Urticaria/ Xanthems/ Rx

Question 1

What is a “wheal” ?

Answer 1

Wheals - pruritic, pink or pale swellings of the superficial dermis with initial erythematous flare around them

Individual lesions come and go rapidly, by definition, generally within 24 hours

Question 2

What defines acute v. Chronic urticaria

Answer 2

Acute ≤ 6 weeks

• Reproducible and immediate reaction to allergen
• May lead to anaphylaxis

Chronic > 6 weeks

• Dx of exclusion
• Recurrent over 6+ weeks
• No obvious trigger
• Smaller lesions

Question 3

Koplik spots (white spots on the buccal mucosa)

Are a sign of..

Answer 3

Measles