Kidney Tumor Blood Test. The doctor may recommend having a blood test to check the number of red blood cells in the blood. The risk decreases after you quit.

The risk decreases after you quit. Treatment for kidney failure. In addition to a physical examination the following tests may be used to diagnose kidney cancer.
High blood pressure hypertension.
The doctor may recommend having a blood test to check the number of red blood cells in the blood. Smokers have a greater risk of kidney cancer than nonsmokers do. This test can help in planning surgery for some patients. The risk decreases after you quit.