How is acute urticaria diagnosed?

Updated: Mar 21, 2018
  • Author: Henry K Wong, MD, PhD; Chief Editor: Michael A Kaliner, MD  more...
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Acute urticaria is generally diagnosed based on a detailed patient history and physical examination (see Clinical Presentation), [39, 40, 41] and laboratory studies generally are not indicated. In pediatric cases, screening for streptococcal antigen may be indicated. [12] The patient's history and physical examination should direct any diagnostic studies. [42, 39, 43]

Imaging studies generally are not indicated unless a specific finding on clinical examination or history suggests an underlying etiology that may warrant further diagnostic studies. [44]

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