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.
Abdominal ultrasound. Where indicated, this scan is done to look for tumours or cysts in the liver; gallstones; aneurisms (swelling) of the aorta and abnormalities of the spleen. Transrectal ultrasound. TRUS evaluates the size and texture of the prostate by means of a lubricated probe inserted into the rectum. The radiologist looks for enlargement, signs of inflammation and increase in blood flow, which can all signify benign disease.