The Stool Occult Blood Test (FOBT) is a diagnostic test used to detect hidden (occult) blood in the stool that is not visible to the naked eye. It is an important screening tool for early detection of conditions like colon cancer, hemorrhoids, or gastrointestinal bleeding.
Indications for Stool Occult Blood Test:
● Screening for colorectal cancer: Used for routine screening in individuals over the age of 50 or those at high risk for colon cancer.
● Gastrointestinal bleeding: To investigate the cause of unexplained anemia, black stools, or gastrointestinal symptoms.
● Monitoring known gastrointestinal conditions: For patients with ulcers, inflammatory bowel disease (IBD), or hemorrhoids to monitor for any signs of bleeding.
How Stool Occult Blood Test Works:
● A small sample of stool is collected and applied to a test card that contains a chemical reagent. If occult blood is present, a color change will indicate a positive result. This test can be done at home or in a clinic.
Normal Range:
● Negative result: No hidden blood detected in the stool.
● Positive result: Presence of occult blood, which may require further investigation, such as colonoscopy or endoscopy.
Abnormal Test Significance:
● Positive result: A positive test can suggest the presence of colon cancer, ulcers, hemorrhoids, or gastrointestinal bleeding. Further tests are needed for a definitive diagnosis.
● False positives: The test may show false positives due to dietary factors (e.g., red meat) or the use of certain medications like aspirin.
Management Based on Results:
● For positive results: Further diagnostic tests, such as colonoscopy, endoscopy, or CT scans, may be needed to identify the source of bleeding.
● For negative results: Continue regular screenings or manage other gastrointestinal conditions if symptoms persist.
Price in India:
Approx. ₹300 – ₹1,500 for a stool occult blood test.
Frequently Asked Questions
Can the stool occult blood test detect all types of gastrointestinal bleeding?
While it is effective for detecting hidden blood, it cannot pinpoint the exact source. Further tests may be necessary.
What should I avoid before taking the test?
Avoid eating red meat or taking aspirin or iron supplements 2-3 days before the test, as they can lead to false positives.
Disclaimer: The stool occult blood test is used to screen for gastrointestinal bleeding. A positive result requires further diagnostic testing for a definitive diagnosis.
How HealthPil Can Help:
At HealthPil, we offer gastroenterologists who can guide you through the stool occult blood test, interpret the results, and provide recommendations for further evaluation and treatment.