The available tests for chronic kidney disease are:

• Serum Creatinine – determines kidney function.
• Creatinine Clearance - diagnoses kidney malfunction.
• Urine Microalbumin and Microalbumin/Creatinine Ratio - screens for kidney disorder. Ordered as a screening test for patients with diabetes and hypertension.
• Estimated Glomerular Filtration Rate (EGFR) or GFR – detects changes in the kidney function.
• Serum Blood Urea Nitrogen (BUN) - determines kidney function, along with the creatinine.  Also used to monitor the status of patients with kidney failure or those on dialysis.

For a detailed explanation of the various tests available, Click here for the link to the Living Centers for Diabetes: Lab Tests to Monitor Kidney Function.