“What tests show kidney levels?”

Glomerular Filtration Rate (GFR) greater than 60 or higher is the normal range. GRR lower than 60 may mean kidney disease. GFR 15 or lower may mean kidney failure. There are urine tests, Dipstick urine test, Urine albumin-to-creatinine ratio (UACR) which compares albumin to creatinine in your urine. Blood tests, Serum creatinine, glomerular filtration rate (GFR), Blood Urea Nitrogen, Blood test, Imaging, and others. Yes, however, is better to go to your healthcare provider who have you complete medical history and therefore his / her assessment would be more complete. They can other additional tests if they are needed. Please, ask the healthcare provider who ordered the laboratory tests for a complete analysis, they will help you.

Your question is not clear. There is test called "kidney level". The two important tests for kidney function are serum creatinine and urine protein level.

These are all done on blood drawn from a vein.
The key tests are blood urea nitrogen (BUN), creatinine (CRE) and estimated glomerular filtration rate (eGFR).

The main test to show kidney status is creatinine. This is a waste product that is clkeard from the blood by normal kidneys, but when the kidney function is compromised, the creatinine level rises. In renal failure, which can arise from various causes, the level of creatinine can rise to dangerous levels. That is when dialysis or kidney transplants are indicated.

Creatinine level and GFR