The last day of my period was the 20th of November. I have not had any symptoms of pregnancy but I think that I may be pregnant. I should have already had or started my period by now but I am still waiting. I would be around 3 weeks pregnant but I am not sure if it is to early to take a pregnancy test.
Learn more about this top honor. The fecal occult blood test (FOBT) is a lab test used to check stool samples for hidden (occult) blood. Occult blood in the stool may indicate colon cancer or polyps in the colon or rectum â though not all cancers or polyps bleed. Typically, occult blood is passed in such small amounts that it can be detected only through the chemicals used in a fecal occult blood test.
OCCULT BLOOD Occult blood is blood that cannot be seen without a microscope. Normal urine does not contain any red blood cells, except femalesâ urine during menstruation. Occult blood in someoneâs urine can indicate kidney, bladder, prostate, or vaginal infections.UROBILINOGEN Urobilinogen is a breakdown product of the hemoglobin in red blood cells. It is not found in normal urine! Urobilinogen in a urine specimen may indicate the rapid destruction of red blood cells.ormal urine does not contain any red blood cells, except femalesâ urine during menstruation. Occult blood in someoneâs urine can indicate kidney, bladder, prostate, or vaginal infections.