Occult Blood Feces Hemoglobin

Abbrev Code:FITHG   
Order Code:LAB4568Order Name:Occult Blood Fecal HGB Immuno
Order Instructions:If screening for colorectal cancer, order test: Occult Blood Fecal Colorectal Cancer Screen (FIT)
Synonyms:Fecal Immunochemical Test (FITHG)
CPT Codes: 82274 x1
Turnaround Time:Performed and reported 24 hours per day.
Special Instructions:Intended for the detection of blood in feces; stomach contents or vomitus should be tested using Gastroccult. Urine and excessive dilution of samples with water from the toilet may cause erroneous test results. For best results, use the collection paper in the collection cup or sample directly from stool collected in specimen cup.

Collection Instructions

Specimen:Transport sample bottle with feces sample applied or fresh feces for inpatients.
Optimal Volume:Scrape surface of fecal sample with sample probe from sample bottle and insert sample probe into sample bottle
Container:Fecal Occult Blood Screening Kit
Alternate Containers: Plastic leakproof container, sterile
Collection Instructions:
Outpatient Collection: The fecal occult blood screening kit has all the necessary items for collection, including directions for specimen collection and application. Instruct the patient to collect a stool specimen on the collection paper inside the toilet bowl on top of water. Use the sample probe to transfer stool to green top FIT sampling bottle within 4 hours of defecation and to mail the sample bottle to UMMC in the cardboard mailer. Use only U.S. Postal Service approved mailing pouch included in the kit. The sample bottle containing the collected fecal specimen may be stored up to 15 days at room temperature, 30 days if refrigerated, before testing. Do not freeze.
Inpatient Collection: Fresh feces sample should be sent to the laboratory immediately for transfer of feces into sample bottle within 4 hours of defecation.
Patient Preparation:
  • Do not collect samples during or until 3 days after menstrual period, or if hematuria or obvious rectal bleeding, e.g. hemorrhoids are present.
  • Remove toilet bowl cleaners from toilet tank and flush twice prior to specimen collection.
  • Coumadin and other prescription medications are usually not restricted.
Causes for Rejection:Stool not transferred to green top FIT sampling bottle within 4 hours of defecation. Frozen samples. Inoculated sample bottle not received within 15 days of collection if sent at room temperature and 30 days if sent at refrigerated temperature; sampling bottle used beyond expiration date. Liquid feces. Feces stored in a container other than sampling bottle and transported from locations other than UMMC-University campus.

Processing and Shipping

Specimen Processing:
  1. Open sampling bottle.
  2. Scrape the surface of fecal sample probe.
  3. Cover the grooved portion of the sampling probe completely with stool sample.
  4. Reinsert sample probe into bottle and close tightly.
  5. Label with barcode label.


Shipping Instructions:Ship at room temperature. Must arrive within 15 days. Alternatively refrigerated to arrive within 30 days of collection. Do not freeze.
Test Performed at or Referral Lab Urinalysis  (Range, Range Clinics, UMMC East Bank)


Reference Range:Blood: Negative
Use:Testing for occult blood by fecal hemoglobin for diagnostic purposes. If screening for colorectal cancer, order test: Occult Blood Fecal Colorectal Cancer Screen (FIT). Fecal Immunochemical Test Screening is more specific for blood originating in the lower GI tract. The Immunochemical Fecal Occult Blood Test uses antibodies specific for human globulin and, unlike the guaiac test, is specific for colorectal bleeding and not affected by diet or medications.

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