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Test Code SQ ZOCBLD, EPIC LAB3957 Occult Blood, Stool (aka GUIAC)


Peroxidase Activity (eg, guaiac)

Useful as a screening test for the presence of blood in feces.

Performing Laboratory

Meriter Laboratories

Specimen Requirements

Specimen Type: Feces

Container/Tube: Hemoccult kit

Specimen Volume: Adequate amount

Collection Instructions:

1. Patient should be instructed to refrain from horseradish, raw meat, turnips, vitamin C, or aspirin for 2 days prior to specimen collection. Compliance should be indicated.

2. Only one specimen collected per day will be accepted, up to three specimens collected on different dates.

3. Submit a properly prepared Hemoccult slide. Follow instructions provided in Hemoccult kit.

Additional Information: Hemoccult slide is best developed no sooner than 3 days after specimen application.

Specimen Transport Temperature

Ambient (15°-30° C) up to 14 days-Hemoccult slide

Reference Values

Negative (reported as positive or negative)

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding