Click here for more information about laboratory operations and procedures
If you have additional questions regarding this test, please call: 415-353-1667
Fecal Occult Blood Test (FIT) (Complete View)
|Test name||Fecal Occult Blood Test (FIT)|
|Test Update Information|
|In House Availability||Once a week (usually Monday day shift)|
|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|
|Amount to Collect|
|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.|
|Ref Lab Rejection Criteria|
|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 guaiac card method and offers increased sensitivity and specificity. Screening for colorectal cancer should no longer be performed by the guaiac method and cards submitted for this purpose will be rejected. Due to the increased sensitivity of this test only a single test is usually performed (compared with 3 guaiac cards). If multiple samples are received together, only one sample with be tested.
Samples should be tested within 12 days of collection. If the patient does not enter a collection date, the comment 'Collection date unknown' will be entered. Samples greater than 12 days old will be rejected by the lab. Repeat testing may be indicated if sample stability is exceeded.
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.
|LDT or Mod FDA?|
|Include for internal use?|
|Last Updated||10/21/2013 8:15:46 AM|
|Lab Procedure Link|