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Fecal Occult Blood Test
| Item | Value |
|---|---|
| Available Stat? | No |
| Test code | FOBT |
| Performed by | Immunology |
| In House Availability | Tuesday (day shift) |
| Method | Immunologic turbidimetry |
| Collection Instructions | Kits are available in some clinics and from the Laboratory collection sites in the ACC, 2330 Post St. and the Mount Zion Cancer center. Patient instructions are available in several different languages: Click here for instructions English Click here for instructions in Spanish Click here for instructions in Vietnamese Click here for instructions in Chinese Click here for instructions in Hindi Click here for instructions in Russian |
| Container type | Stool sampling bottle |
| Sample type | Stool |
| UCSF Rejection Criteria | Samples must be received by the laboratory within 12 Days of collection. Samples > 12 days old when received will not be tested. |
| Normal range | Negative |
| Synonyms | FIT test; Immuno-occult blood; stool guaiac, hemoccult; |
| Stability | Inoculated sample bottle stable for 12 days at room temperature. Refrigerated 1 month. |
| Turn around times | 1-8 days |
| Additional information | This test replaces the prior guiac card method and offers increased sensitivity and specificity, Screening for colorectal cancer should no longer be performed by the guiac method and cards submitted for this purpose will be rejected. Screening for occult fecal blood is a Medicare benefit for patient > 50 years old at intervals of at least 11 full months and with the written order of a physician. More frequent testing in the absence of a specific relevant diagnosis is not considered screening, is not covered by Medicare and may result in charges to the patient. |
| Medical Necessity? | Yes.Click here for more information |
| LOINC code | 29771-3 |
| Last Updated | 4/1/2013 11:16:42 AM |
| Entry Number | 1288 |
If you have additional questions regarding this test, please call: 415-353-1667