title: The evaluation of patients with urticaria.
abstract: Not only is urticaria a condition of disparate cause, but it also may be produced through the action of one or more of a long list of chemical mediators. This article discusses some of the accepted procedures in the evaluation of patients with urticaria, which includes not only categorization but also a search for the sources of aggravation and laboratory testing to confirm the clinical diagnosis. An example of a printed history form is included, which comprises questions that hopefully will help to identify aggravating factors as well as potential causes.
mesh_terms: D000799:Angioedema / Q000175:diagnosis / Q000235:genetics; D001241:Aspirin / Q000009:adverse effects; D003080:Cold Temperature / Q000009:adverse effects; D004396:Coloring Agents / Q000009:adverse effects; D003877:Dermatitis, Contact / Q000175:diagnosis / Q000209:etiology; D005520:Food Preservatives / Q000009:adverse effects; D006358:Hot Temperature / Q000009:adverse effects; D006801:Humans; D011312:Pressure / Q000009:adverse effects; D012459:Salicylates / Q000009:adverse effects; D013472:Sunlight / Q000009:adverse effects; D014439:Tyramine / Q000009:adverse effects; D014581:Urticaria / Q000139:chemically induced / Q000175:diagnosis* / Q000209:etiology; D014657:Vasculitis / Q000175:diagnosis; D014867:Water; D015003:Yeasts
chemical_list: D004396:Coloring Agents; D005520:Food Preservatives; D012459:Salicylates; D014867:Water; D001241:Aspirin; D014439:Tyramine