Several associated laboratory findings, when combined with clinical data, can be helpful in making the diagnosis. They typical child with KD is anemic and has a leukocytosis with a “shift to the left” (increased immature white blood cells) during the acute phase. Thrombocytosis with hypercoagulability becomes evident in the subacute phase and peaks approximatcly 3 weeks after the onset of fever. An elevated erythrocyte sedimentation rate and C-reactive protein level reflect ongoing inflammation and generally persist for 6 to 8 weeks. The erythrocyte sedimentation rate can be further witr elevated by the administration of IVIG, and therefore it is useful to measure C-reactive protein level as another indicator of inflammation. Microscopic urinalysis reveals a sterile pyuria with monomuclear cells. This will not be evident with a regular dipstick test, because the white blood cells are not polymorphonuclear neutrophils. A transient elevation of liver enzyme levels typically occurs, reflecting inflammation of the liver.