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Fecal Occult Blood, Immunoassay Blood Test

* This is not a home test kit. You will need to visit a local lab for testing.

Also Known As: FOBT, Stool Occult Blood Test, Occult blood test, Hemoccult test, Immunochemical FOBT, Guaiac Smear Test, and Stool Guaiac Test

Purpose of the Fecal Occult Blood Test

The fecal occult blood test is performed as part of a health and wellness screening or to confirm gastrointestinal bleeding as part of early detection for colorectal cancer, inflammatory bowel disease (IBD), and other related conditions.

Tests Included:

Fecal Occult Blood,Immunoassay (11290)
Fecal Occult Blood,Immunoassay (182949)

What does the Fecal Occult Lab Test measure?

A fecal occult blood immunoassay detects blood in the stool that cannot be seen with the naked eye, known as occult blood. Using a fecal sample, blood is confirmed by determining the presence of a chemical reaction upon the introduction of specific substances, particularly guaiac and hydrogen peroxide.

Who Should Take a Screening Test for Fecal Occult?

Individuals at risk of colorectal cancer should take a fecal occult blood test as part of their annual screening or cancer work-up. These include people over 45 years old and those with a family history of cancer.

In addition, people planning to undergo weight loss should also consider adding the fecal occult lab test in their blood workup. Depending on the symptoms, physicians may also recommend the test to confirm other gastrointestinal disorders like Celiac disease, polyposis, and IBD.

Fecal Occult Blood Immunoassay Test Preparation

No special preparation, specifically drug or dietary restrictions, are generally required prior to the test. Results of this test are not affected by dietary peroxidases, animal blood, or vitamin C. If you have other questions or concerns, consult with your healthcare provider first.

Stool Occult Blood Test Results

Fecal occult blood immunoassay test results indicate whether or not blood is detected in your sample. Typically, it’s confirmatory, indicating whether the result is positive or negative.

Where Can I Get a Fecal Occult Blood Test Done Near Me?

Take the screening test for fecal occult at Personalabs. Simply follow these steps.

Step 1: Visit our website’s lab tests section. Then, order the test and download the lab test order, serving as a doctor’s order for your lab work.

Step 2: Choose a nearby lab using our lab locator.

Step 3: Get your blood drawn at the lab of your choice.

Step 4: Expect the lab test results within 2-10 business days in your Personalabs account.

For an exact turnaround time for results, please contact us at 1-888-438-5227.

*If ordering additional tests, please place a separate order as Fecal Occult Blood Test sample must be given first.

Estimated Turn Around For Results:

2-10 Business Days

For an exact turnaround time for results, please contact us at Personalabs and we will contact the lab on your behalf as turnaround times vary depending on testing location or lab testing provider.

Additional information


LabCorp, Quest

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Get Your Results

Results can be provided in as little as 24-48 hrs. For more complex tests, please contact us for turn around times.


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