Timothy S. Larson, M.D.

Closed for Enrollment

• Clinical Validation of Glomerular Filtration Rate Determination Using Iohexol Plasma Disappearance versus Iothalamate Renal Clearance Rochester, Minn.

  The goal of this study is to evaluate the glomerular filtration rate determination using plasma disappearance of Iohexol and determine its clinical validity in comparison with the current standard Iothalamate renal clearance.

• Simultaneous Comparison of Iothalamate and Iohexol Urinary Clearances Rochester, Minn.

  The purose of this study is to validate the urinary clearance of iohexol as an alternative for urinary clearance for mGRF testing.