Generally, with acute kidney disease you’ll develop symptoms based on which the doctor will recommend tests for assessing your kidney function. In chronic kidney disease, the symptoms are not seen in the early stages but the same tests if taken early can help diagnose kidney disease.

1. Blood tests: Several markers in the blood can help identify the actual kidney function. Urea and creatinine are the gold standards to detect kidney disease.
2. Urine tests: The ratio of values for blood and urine marker can give the actual rate of clearance of kidneys.
3. Estimated GFR: eGFR is the estimate of filtration rate of the kidneys based on a formula that include serum creatinine values along with correction factors like age, gender and race.
4. Imaging tests: Imaging test like renal ultrasound uses ultrasonic waves to analyse the size and shape of the kidneys to identify renal injury and changes in filtration capacity of the kidneys.