Bronchoscopic Procedures. Bronchoscopy is a procedure that is used to view the trachea and bronchial tubes and is used to diagnose lung disease and infection. It may also be used during the treatment of some lung conditions.
If results indicate a possibility of disease or impaired kidney function, one or more of the following additional tests is usually performed to pinpoint the cause and the level of decline in kidney function. 1  Creatinine clearance test. 2  Urea clearance test. 3  Urine osmolality test.  Urine protein test.
Urine Tests. One of the primary functions of the kidneys is to filter blood and remove waste products. Urine tests measure how well your kidney filters (see figure) are working. When functioning normally, glomerular filters are able to filter out wastes, but keep protein and red blood cells in the bloodstream.