1 Add 10 drops of Benedicts solution to each test tube. 2  Place the test tubes in the hot-water bath. Heat the test tubes for 3 to 5 minutes, or until the indicator changes color, if it changes color.  With a test tube holder, remove the tubes from the hot-water bath and place them back in the test tube rack.
Prostate Ultrasound. Prostate Ultrasound. Definition. A prostate ultrasound is a diagnostic test used to detect potential problems with a man's prostate. An ultrasound test uses very high frequency sound waves that are passed through the body. The pattern of reflected sound waves, or echoes, shows the outline of the prostate.
What Tests Can Detect Prostate Cancer Early? The tests discussed below are used to look for warning signs of prostate cancer. But these early detection tests canât tell for sure if you have cancer. If the result of one of these tests is abnormal, you will probably need a prostate biopsy to determine if you have cancer. Prostate-specific antigen (PSA) blood test.