But more often, you will get chemotherapy along with surgery, radiation therapy, or biological therapy. Chemotherapy can: 1  Make a tumor smaller before surgery or radiation therapy. 2  This is called neo-adjuvant chemotherapy. 3  Destroy cancer cells that may remain after surgery or radiation therapy.
The remaining waste forms urine. If the creatinine and BUN tests are found to be abnormal or if someone has an underlying disease that is known to affect the kidneys, such as diabetes or high blood pressure, then creatinine and BUN tests may be used to monitor for kidney dysfunction and the effectiveness of treatment.he remaining waste forms urine. If the creatinine and BUN tests are found to be abnormal or if someone has an underlying disease that is known to affect the kidneys, such as diabetes or high blood pressure, then creatinine and BUN tests may be used to monitor for kidney dysfunction and the effectiveness of treatment.
Blood urea nitrogen (BUN) test â Learn how to prepare, what to expect and possible results of this test to assess kidney and liver function.