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Test Code FOB Occult Blood, Fecal

Infectious

Additional Codes

EPIC LAB4575

Clinical Significance

Usually in the early stages, bowel cancer causes no pain and gives no warning signals other than occult asymptomatic bleeding. Colorectal cancer detected in the early stages offers an excellent prognosis. Blood may also appear in the stool following bleeding from anywhere in the gastrointestinal tract.

Methodology

Hemosure One Step Immunological Fecal Occult Blood test is a CLIA Waived, qualitative, sandwich dye conjugate immunoassay and employs a unique combination of monoclonal and polyclonal antibodies so selectively identify hemoglobin in test samples with a high degree of sensitivity.

Sample Type

Stool - Collected in sterile (twist-off lid) container.

Specimen Minimum Volume

1 gram

Specimen Stability

Temperature Time
Ambient (18-30°C) 6 days
Refrigerated (2-8°C) (store) 30 days
Frozen (-15 to -20°C) N/A

Stability only applies to specimens in fecal collection tube.

 

Reference Ranges

Normal
Negative

Rejection Criteria

A specimen should not be collected from a patient with the following conditions that may interfere with the test results.

  • Menstrual bleeding
  • Constipation bleeding
  • Bleeding hemorrhoids
  • Urinary bleeding

Availability

Performed STAT
24/7 Yes

 

Performing Laboratory

MultiCare Yakima Memorial Hospital Laboratory

Lab Department

Urinalysis

CPT Code

82274

LOINC

2335-8 Hemoglobin.gastrointestinal QI (Stl)

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