Fecal Occult Blood - Immunochemical (Hemoccult ICT)
Label Mnemonic: FOBICT
Epic Lab Code: LAB7641
Downtime Form: A-1a Miscellaneous Request
Chemistry
6240 RCP
356-3527
Specimen(s):
Random Stool
Collection Medium:
Hemoccult ICT Collection Card
Minimum:
Submit two home stool samples on the respective spots on a Hemoccult ICT Slide for Home Application (#60068) available from Hospital Stores.
Rejection Criteria:
Samples not received within 14 days of collection. Fecal specimens not placed in the proper home application slides.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
Negative
Comments:
Testing should not be performed with actively bleeding hemorrhoids or during menstruation. It is strongly recommended not to use stool specimens obtained by digital rectal examination because of low sensitivity for detection of colorectal cancers or precursor lesions. Immunochemical methods are predominantly sensitive to lower gastrointestinal (GI) tract bleeding, particularly for screening for colorectal cancer lesions. Guaiac-based cards are preferred for detection of upper GI bleeding (e.g., workup of patient with apparent active GI bleeding).

This test is also performed in the Iowa River Landing (IRL) clinical laboratory (for specimens drawn at that site).
Methodology:
The fecal occult blood test detects the presence of human hemoglobin by an immunochemical method. Unlike guaiac-based cards, this immunochemical method is NOT subject to interferences by red meat, plants, and vitamin C (ascorbic acid).
CPT Code:
82274