Fosfat nefropatisi; fosfat kristallerinin renal tübülleri etkilemesiyle olusan önce akut, sonrasinda kronik böbrek hasari ile seyreden bir klinik tablodur. Kolonoskopi birçok endikasyonla sik olarak kullanilan bir yöntemdir. Islem öncesinde hazirlik amaçli kullanilan oral fosfat içerikli pürgatifler bu tablonun gelisimine yol açmaktadir. Nefropati gelisme riski yüksek olan gruplarda, fosfat içermeyen pürgatiflerin kullanilmasi önerilmektedir. Fosfat nefropatisi tedavisinde temel yaklasim hasarin gelisimini önlemektir. Biz bu yazimizda, oral sodyum fosfat ile kolonoskopi yapilan ve islem sonrasi fosfat nefropatisi ile uyumlu akut böbrek hasari gelisen iki vakayi sunmayi amaçladik
Phosphate nephropathy is a clinical picture that occurs with the effect of phosphate crystals on the renal tubules, which first progresses with acute and then chronic kidney damage. Colonoscopy is a method for direct examination of the colon performed with various indications. Oral phosphate-containing purgatives used for preparatory purposes before this procedure lead to the development of this disease. In groups with a high risk of developing nephropathy, phosphate-free purgatives are recommended during the preparation for the colonoscopy. The principal treatment for phosphate nephropathy is to prevent the development of damage. In this article, we aimed to present two cases of phosphate nephropathy who underwent colonoscopy for different indications and that oral phosphate was used during the preparation for the procedure.