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Irritability in Adults


Diagnosis & Tests

How is the condition diagnosed?

The healthcare provider begins the investigation of irritability with a history and physical exam. This may be all that is needed to make the diagnosis. In other cases, the healthcare provider may order tests such as:

  • a complete blood count, or CBC, to detect infection or blood cancer
  • x-ray tests, such as a chest x-ray, to help diagnose some infections and cancers
  • thyroid function tests to check for abnormalities with the body's metabolism
  • psychological testing to check for mental or psychological impairments