Which lab studies are indicated when the clinical picture suggests incomplete Kawasaki disease?

Updated: Jul 29, 2018
  • Author: Tina K Sosa, MD; Chief Editor: Russell W Steele, MD  more...
  • Print

In some cases, patients have prolonged fever and some of the principal clinical features of KD but not as many as are required to meet standard diagnostic criteria. Hence, the term "incomplete" rather than "atypical" is used to describe these cases. The AHA recommends that when fever for 5 days or longer plus 2 or 3 of the principal clinical features are present without an alternative explanation, a C-reactive protein (CRP) level and erythrocyte sedimentation rate (ESR) should be obtained. If the CRP level is less than 3 mg/dL and the ESR is less than 40 mm/hr, the child is monitored clinically. Re-evaluation of these laboratory markers takes place if fevers persist, and an echocardiogram is performed if skin peeling develops.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!