Radiation methods for evaluating renal function in children

 An accurate assessment of renal function is critical for adequate dosing of medications. The most informative marker reflecting the functional state of the kidneys is glomerular filtration rate (GFR). Determination of inulin clearance is the most accurate way to assess GFR in children and adults. In this case, the method is invasive, cumbersome, younger children require the installation of a urinary catheter. Techniques for radioisotope estimation of GFR can solve this problem, but all widely used radioisotopes have the ability to bind slightly to plasma proteins, which leads to an underestimation of real values.