Is there a self-test for kidney function?

There is no self-test for kidney function, you need to go to regular hospital for examination. Kidney function tests include serum urea, blood creatinine, uric acid, and dynamic imaging of the kidneys.
You can observe whether the blood urea and creatinine are abnormal, and at the same time combine with the dynamic imaging examination of the kidney to observe whether the filtration rate of the kidney has decreased. If the blood creatinine and urea increase at the same time, and the glomerular filtration rate decreases significantly, renal failure can be suspected. However, it needs to be combined with clinical symptoms to make an accurate judgment.
High uric acid may be caused by gout, acute or chronic renal insufficiency.
If you suspect kidney function abnormality, it is recommended that you consult a doctor in a regular hospital in time, complete the relevant examinations, and standardize the treatment by identifying the cause.