Blood, Feces, Guaiac, Qualitative, Point of Care Testing (POCT)

Sunquest Code:OBLD  
Epic Code:POC13Epic Name:Occult Blood, Stool, POCT
Order Instructions:POC13 is for use with inpatients. For outpatients use Epic Code LAB5729.
Synonyms:Blood, Guaiac Test; Blood, Stool; Occult Blood, Feces; Occult, Blood, Stool
Methodology:Guaiac Test
Turnaround Time:Performed and reported 24 hours/day.
Special Instructions:For monitoring GI bleeding, random fecal specimens are tested; stomach contents or vomitus should be tested using Gastroccult.

Collection Instructions

Specimen:Feces or a prepared guaiac test slide
Optimal Volume:5 mL liquid specimen or quarter sized solid specimen
Minimum\Peds Volume:1 mL
Container:See Collection Instructions
Collection Instructions:


·          Do not collect samples during or until 3 days after menstrual period or if hematuria obvious rectal bleeding, e.g., hemorrhoids, are present.

·          For 7 days prior to and during the test period, do not take more than one adult aspirin (325 mg) a day and no other non-steroidal drugs (ibuprofen).

·          For 3 days prior to and during the test period, avoid Vitamin C in excess of 250 mg/day (for all sources, dietary and supplemental, e.g. some iron supplements contain greater than 250 mg Vitamin C).

·          For 3 days prior to and during the test period, avoid red meat, including processed meats and liver; avoid melons, radishes, turnips and horseradish.

·          Remove toilet bowl cleaners from toilet tank and flush twice prior to specimen collection.

·          Coumadin and other prescription medications are usually not restricted.


Inpatient Collection:

For fecal collection refer to the instructions provided in the Laboratory Guide collection procedure “Fecal Collection, Random/Timed”. A small fecal specimen is applied to the guaiac paper of the slide as a thin smear using the applicator stick provided. Slides may be prepared and developed after 3-5 minutes.




Processing and Shipping

Specimen Processing:Store in refrigerator.
Shipping Instructions:Ship at room temperature. Must arrive within 14 days.
Test Performed at or Referral Lab Point of Care  (UMMC-West Bank, UMMC-East Bank, Fairview Ridges - FRH, Fairview Lakes (FLMC) ED Only)


Reference Range:Blood: Negative.
Use:Detection and monitoring of gastrointestinal bleeding.

Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact: for TestID: 6474"