Lab Test : Occult Blood, Stool

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Alternate:Stool for Blood; Occult; Stool Guaiac
Includes:Occult blood
Department:Chemistry
Phone:(937) 641-3428
SQ Code:OCBL
Available:Daily, 24 hours
Turnaround:Routine: 2 hours, STAT: 30 minutes
Specimen:Stool Specimen
Volume:Pea-sized stool.
Container:Clean specimen container or stool collection container
Temperature:Transport to laboratory within one hour or refrigerate.
Rejection:Specimen contaminated with urine.
Normal:Negative
Uses:Qualitative detection of blood in stool which may be indicative of gastrointestinal disease.
Limitations:Serial fecal specimens of 3 is recommended when screening asymptomatic patients. Aspirin and other non-steroidal anti-inflammatory drugs should be avoided for 7 days prior to test. Many foods (meats, fruits, vegetables) can produce a false positive or false negative result.
Method:Colorimetric
 

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