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HelpEpic Test Code LAB694 Stool, Occult Blood (single card), Diagnostic only
Performing Location(s)
BMC,CRH,LFH,OCH,FTT,FOX
Specimen Type
Random Stool
Preferred Container
Seracult Plus
Alternate Container
Stool Container
Volume Required
Single Card
Transportation Needs
Cards must be returned to the laboratory for testing within 21 days after preparation *Transport at room temperature
Storage Requirements
Store the card at room temperature
Causes for Rejection
Specimen is applied to wrong side of the card
Stool card received beyond expiration date printed on card
Stool card no received within 21 days of collection
Stool samples > 48 hours old if collected and stored in a stool container
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. Iron-rich supplements have been associated with false positive results. Ingestion of high doses (>250 mg/day) of vitamin C (ascorbic acid) have been linked to false negative results.
Reference Values
| Population | Units | Reference Range |
| All Populations | none | Negative |
Days of Analysis
All
Available STAT
Yes
Includes
Testing of single card submitted to the laboratory
Additional Information
NOTE: Single Cards can only be used for Diagnostic Testing in patients with symptoms
Patient Preparation: Patient should be placed on a meat-free low peroxidase diet to minimize false positive test results; Foods to be avoided include: beef, cauliflower, horseradish, red radishes, turnips, broccoli, and cantaloupe; Intake of Vitamin C in excess of 250 mg/day, iron rich supplements and aspirin should be avoided
CPT Code
82272
Last Updated
22-July-19 BHD