What does a positive occult blood test indicate?

What do the results mean? If your results are positive for either type of fecal occult blood test, it means you likely have bleeding somewhere in your digestive tract.

What is the treatment of occult blood?

Treatment of bleeding most often involves endoscopic ablation of the bleeding site with thermal energy, if the site is accessible. Angiographic embolization may be used to treat lesions that cannot be reached endoscopically. Diffuse vascular lesions, which are not uncommon, are difficult to treat.

What is occult blood test used for?

The fecal occult blood test (FOBT) is used to find blood in the feces, or stool. Blood in the stool may be a sign of colorectal cancer or other problems, such as ulcers or polyps. These are growths that develop on the inner wall of the colon and rectum.

How do I prepare for an occult blood test?

Getting Ready for Your FOBT Starting 3 days before you begin collecting your stool samples, avoid: Red meat, such as beef, lamb, or liver. Raw fruits and vegetables. Vitamin C, such as fruit juices with vitamin C and vitamin C supplements in doses higher than 250 milligrams (mg) per day.

What color is a positive occult blood sample?

Background: In guaiac-based faecal occult blood tests (FOBT), blue colours are considered positive. Blue-green colours should also be considered positive. Distinct green colours are said to be due to bile and it is stated that these should be interpreted as negative.

What can cause occult blood in stool?

What Causes Blood to Appear in Poop?

• Growths or polyps of the colon.
• Hemorrhoids (swollen blood vessels near the anus and lower rectum that can rupture, causing bleeding)
• Anal fissures (splits or cracks in the lining of the anal opening)
• Intestinal infections that cause inflammation.
• Ulcers.
• Ulcerative colitis.

How do you detect occult blood in stool?

The fecal immunochemical test (FIT) is the test of choice over the fecal occult blood test. This test can be done at home. For this test, you take a sample from your stool with a brush and dab it onto a special card. This test may be easier to do at home than the FOBT.

What does abnormal occult blood mean?

Occult blood and protein in the urine test may signify underlying kidney damage. The nitrite, leukocyte esterase and WBC levels is suggesting of a urinary tract infection. An abnormal specific gravity, pH, or ketones is suggestive of dehydration.

What does positive blood in stool mean?

Occult Blood Positive in Stool Test – This means that you have blood in your stool. It may mean that you are bleeding in your digestive system, but it doesn’t always mean that you have cancer. Other conditions may be ulcers, benign tumours, hemorrhoids, and polyps. Additionally,…

What is the definition of occult blood?

occult blood. n. Blood that is present in amounts too small to be seen and can be detected only by chemical analysis or microscopic examination.

What are the reasons for bloody stool?

Typically, bloody stools will be caused by hemorrhoids or anal fissures (with bright red blood or maroon-colored stools), diverticula, ulcers and other problems of the duodenum or stomach (with a black, tarry stool from partial digestion of blood).