Examination of cerebrospinal fluid may give evidence of an aseptic meningitis (presence of inflammatory cells). Albumin levels may be lower than normal. Echocardiograms are used to monitor myocardial and coronary artery status. A baseline echocardiogram should be obtained at the time of diagnosis for comparison with future studies. In addition, follow-up echocardiograms should be performed at approximately 2 weeks after onset and again at 6 to 8 weeks from the onset of fever to determine the diameter of the coronary arteries as well as LV contractility and valvular function. If cardiac involvement is evident, of if the child has continued fever or required retreatment, more frequent studies to assess coronary dimensions may be indicated.