Tests of Kawasaki Disease

Blood tests

* Complete blood count (CBC) may reveal normocytic anemia and eventually thrombocytosis
* Erythrocyte sedimentation rate (ESR) will be elevated
* C-reactive protein (CRP) will be elevated
* Liver function tests may show evidence of hepatic inflammation and low serum albumin

Other tests (may or may not be performed)

• Electrocardiogram may show evidence of ventricular dysfunction or, occasionally, arrhythmia due to myocarditis
• Echocardiogram may show subtle coronary artery changes or, later, true aneurysms.
• Ultrasound or computerized tomography may show hydrops (enlargement) of the gallbladder
• Urinalysis may show white blood cells and protein in the urine (pyuria and proteinuria) without evidence of bacterial growth
• Lumbar puncture may show evidence of aseptic meningitis
• Angiography was historically used to detect coronary artery aneurysms and remains the gold standard for their detection, but is rarely used today unless coronary artery aneurysms have already been detected by echocardiography. If not treated in time it can cause many heart problems.