Epic Test Code LAB2902 Stool, Occult Blood (Immunochemical)
Performing Location(s)
HRK
Specimen Type
Random Stool
Preferred Container
Hemosure
Volume Required
One or Two vials
Storage Requirements
Refrigerated
Transportation Needs
Tubes must be returned to the laboratory for testing within six days at room temperature or 30 days refrigerated after preparation
Causes for rejection
Mislabeled or unlabeled specimen
Collection tubes received beyond expiration date printed on vial
Collection tubes not received within 6 days of collection at room temperature.
Stool samples >48 hours old (if collected and stored in a stool container) or >30 days refrigerated
Frozen Specimens- iFOB tubes frozen after collection of specimen
Limitations
Results can only be regarded as preliminary screening or as an aid to diagnosis and cannot be considered conclusive evidence of the presence or absence of gastrointestinal bleeding or pathology. Certain medications may cause gastrointestinal irritation leading to occult bleeding. This may be a false positive test result. A negative result can be obtained even when a GI disorder is present as not all polyps or colorectal cancers bleed or may bleed intermittently.
Reference Range
Population | Units | Reference Range |
All populations | None | Negative |
Additional Information
Collection tubes with stool samples maybe stored up to six days at room temperature or 30 days refrigerated
Methodology
Immunochemical test for human hemoglobin
CPT Code
82274
Last Updated
21-SEP-23 MS