What is the role of lab studies in the workup of drug eruptions?

Updated: Feb 15, 2019
  • Author: Jonathan E Blume, MD; Chief Editor: Dirk M Elston, MD  more...
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Answer

History and physical examination are often sufficient for diagnosing mild asymptomatic eruptions. Severe or persistent eruptions may require further diagnostic testing.

Much research is directed at identifying laboratory techniques that can establish a diagnosis of a drug eruption. In current practice, most of these techniques are still too early in development for routine clinical use. Diagnostic tools for the assessment of allergic rashes usually still depend on challenges to identify causative agents. [45]


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