What is the meaning of the following blood test results creatinine from 1.67 down to 0.83. Ast (sgot) 50, bun creat ratio 22.00, est GFR less than 60?

Kidney and Liver T. Egfr (normal >60), creatinine, bun/cr ratio are all lab values to suggest how the kidney function is, ast is an enzyme secreted by the liver, if its elevated there is something wrong with the liver (it varies from mild to severe). Check with your doctor or mentor about the normal values and the abnormal ones.