: åWhich of the following is the

: åWhich of the following is the most common cause of acute urticaria? a. Viral infection b. Food allergies c. Drugs d. Radiocontrast media : Which of the following is not a type of physical urticaria? a. Cholinergic urticaria b. Autoimmune urticaria c. Aquagenic urticaria D. Cold urticaria : Which of these signs/symptoms is not consistent with a diagnosis of urticaria? a. Lesions that are pruritic b. Lesions which appear oval, serpiginous, or polycyclic with central clearing, peripheral extension and/or coalescence of wheal lesions c. The eruption lasts 24-72 hours before resolving d. Often appear in the evening or upon waking : A six year old patient presents in your clinic with multiple randomly distributed pruritic urticarial papules, many excoriated, on bilateral lower extremities. The mother reports that the family has a pet dog, however, the dog does not have fleas. No other family members report having the same problem. What is the most likely diagnosis? a. Atopic dermatitis b. Henoch-Schonlein purpura (HSP) c. Papular urticaria d. Allergic

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