Hemolytic uremic syndrome: glomerular filtration rate, 6 to 11 years later measured by 99mTc DTPA plasma slope clearance.

Thirty-seven patients who had been discharged from hospital six to eleven years after an acute episode of hemolytic uremic syndrome were studied. Glomerular filtration rates were measured by plasma slope clearance using 99mTc DTPA. Eleven patients had GFRs below 60 ml/min/1.73 m2. Hemolytic uremic syndrome may result in an appreciable deterioration in GFR undectable by routine laboratory tests and without clinical signs.