Patient Preparation

Prior to collecting sample, patient information needs to be filled out on the OC-Auto sampling bottle, including first and last name, date of birth and date of collection (write clearly using non-smudging pen).

Use the OC FIT collection devices provided by the physician's office and include a copy of the requisition in the return mailer.

Collect

Only use the OC-FIT sample collection container provided.

Stool Collection Process:

1. Collect stool by placing collection paper on the surface of the toilet water or under the toilet lid, be careful not to contaminate sample with urine or toilet water.
2. Open sample collection tube by turning counter-clockwise.  Randomly scrape the surface of the stool sample with the sample probe, covering the grooved portion completely.  
3.  Close the sampling bottle by inserting the probe and screwing the cap on tightly, do not reopen.
4.  Return the sampling bottle for testing in the BayCare addressed mailer by USPS, no postage is required.  OC-FIT is an exempt human specimen.  

 

Unacceptable Conditions

Patient samples not transported at the correct temperature and not received in the laboratory within 15 days from collection.

Storage/Transport Temperature

Ambient/ Room Temperature  2 - 30oC

Stability (from collection to initiation)

Ambient:  15 days

Remarks

Limitations of Testing:

Patients with the following conditions should not be considered for OC-FIT testing, as these may interfere with test results
  • Bleeding Hemorrhoids
  • Constipation bleeding
  • Menstrual bleeding
  • Urinary bleeding
However, they may be tested after such bleeding ceases.

Certain medications (ex: Aspirin and Nonsteroidal anti-inflammatory drugs) may cause gastrointestinal irritation and subsequent bleeding in some patients and cause positive results.


 

Cerner Orderable(s)

Fecal Occult Blood Screen
Fecal Occult Blood Diagnostic

*Note - this test is for Outpatients only

Performed

BayCare Laboratories, LLC

Mon - Fri

Methodology

Qualitative immunochemical test (OC-FIT)

Reported

Within 3 days of returned mailer receipt

Synonyms

  • Fecal occult blood immunoassay
  • iFOB Test
  • Fecal Immunochemical Testing (FIT)
  • Occult Blood

Reference Interval

>100 ng hHB (human Hemoglobin)/mL is considered positive 

Interpretive Data

  • The OC-FIT result is reported qualitatively; the cutoff for a positive result is 100 ng human Hemoglobin/mL
  • This test does not detect upper gastrointestinal bleeding
  • Positive rates with OC-FIT vary in each patient population depending on age and ethnicity of the patient, the predisposition to colorectal disease, and other factors that may be associated with gastrointestinal bleeding.  Testing of patients with hemoglobinopathies has not been validated
  • Gastrointestinal lesions may bleed intermittently and blood in the feces is not distributed uniformly, a negative result does not assure absence of lesion
  • Raw vegetables and animal hemoglobin do not interfere or show cross reactivity in the OC-FIT testing platform
  • Positive result should be followed up with further studies to establish source of bleeding

CPT Codes

GO328  Screening
82274    Diagnostic
Collection

Patient Preparation

Prior to collecting sample, patient information needs to be filled out on the OC-Auto sampling bottle, including first and last name, date of birth and date of collection (write clearly using non-smudging pen).

Use the OC FIT collection devices provided by the physician's office and include a copy of the requisition in the return mailer.

Collect

Only use the OC-FIT sample collection container provided.

Stool Collection Process:

1. Collect stool by placing collection paper on the surface of the toilet water or under the toilet lid, be careful not to contaminate sample with urine or toilet water.
2. Open sample collection tube by turning counter-clockwise.  Randomly scrape the surface of the stool sample with the sample probe, covering the grooved portion completely.  
3.  Close the sampling bottle by inserting the probe and screwing the cap on tightly, do not reopen.
4.  Return the sampling bottle for testing in the BayCare addressed mailer by USPS, no postage is required.  OC-FIT is an exempt human specimen.  

 

Unacceptable Conditions

Patient samples not transported at the correct temperature and not received in the laboratory within 15 days from collection.

Storage/Transport Temperature

Ambient/ Room Temperature  2 - 30oC

Stability (from collection to initiation)

Ambient:  15 days

Remarks

Limitations of Testing:

Patients with the following conditions should not be considered for OC-FIT testing, as these may interfere with test results
  • Bleeding Hemorrhoids
  • Constipation bleeding
  • Menstrual bleeding
  • Urinary bleeding
However, they may be tested after such bleeding ceases.

Certain medications (ex: Aspirin and Nonsteroidal anti-inflammatory drugs) may cause gastrointestinal irritation and subsequent bleeding in some patients and cause positive results.


 
Ordering

Cerner Orderable(s)

Fecal Occult Blood Screen
Fecal Occult Blood Diagnostic

*Note - this test is for Outpatients only

Performed

BayCare Laboratories, LLC

Mon - Fri

Methodology

Qualitative immunochemical test (OC-FIT)

Reported

Within 3 days of returned mailer receipt

Synonyms

  • Fecal occult blood immunoassay
  • iFOB Test
  • Fecal Immunochemical Testing (FIT)
  • Occult Blood
Result Interpretation

Reference Interval

>100 ng hHB (human Hemoglobin)/mL is considered positive 

Interpretive Data

  • The OC-FIT result is reported qualitatively; the cutoff for a positive result is 100 ng human Hemoglobin/mL
  • This test does not detect upper gastrointestinal bleeding
  • Positive rates with OC-FIT vary in each patient population depending on age and ethnicity of the patient, the predisposition to colorectal disease, and other factors that may be associated with gastrointestinal bleeding.  Testing of patients with hemoglobinopathies has not been validated
  • Gastrointestinal lesions may bleed intermittently and blood in the feces is not distributed uniformly, a negative result does not assure absence of lesion
  • Raw vegetables and animal hemoglobin do not interfere or show cross reactivity in the OC-FIT testing platform
  • Positive result should be followed up with further studies to establish source of bleeding
Administrative

CPT Codes

GO328  Screening
82274    Diagnostic