Occult Blood, Fecal, Immunoassay (ColoFIT™)
Also known as: FIT, iFOBT
Use
Qualitative detection of fecal occult blood
Special Instructions
No special drug or dietary restrictions are necessary before collecting the specimen. Use the provided collection paper to obtain the fecal sample, ensuring the stool does not contact toilet water. The sample should be stored at room temperature for analysis.
Limitations
The test is intended to detect human hemoglobin in fecal samples only and is not suitable for other specimen types such as urine or gastric fluids. It is not definitive for detecting the source of gastrointestinal bleeding, as positive results indicate the need for further diagnostic investigations. Negative results do not completely exclude the presence of pathology, as bleeding may be intermittent or fecal blood may not be uniformly distributed. External factors such as menstrual bleeding or certain medications can interfere with test results. The test should not be used for patients with ongoing visible bleeding.
Methodology
Immunoassay
Biomarkers
LOINC Codes
- 29771-3
- 29771-3
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
One Polymedco OC-Auto Sampling Bottle with stool
Minimum Volume
Not provided
Container
Polymedco OC-Auto Sampling Bottle
Collection Instructions
Enter patient identification and date of collection on sampling bottle label. Place collection paper inside toilet bowl on top of water. Deposit fecal sample on top of collection paper. Avoid contact with toilet water. Open the green cap, scrape the fecal sample with the probe, cover the probe completely, and close the bottle securely.
Patient Preparation
No special drug or dietary restrictions are required.
Storage Instructions
Specimen in sampling bottle can be stored for 15 days at room temperature.
Causes for Rejection
Collection tube or sampling device other than the Polymedco OC-Auto Sampling Bottle; specimens with obvious blood; raw stool submitted in a container; unlabeled specimen or name discrepancy; specimen received after prolonged delay; specimen received frozen; expired sampling bottle; leaking sampling bottle; sampling bottle overfilled or without adequate liquid
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 15 days |
Other tests from different labs that may be relevant