FOBT

Black, tarry stool means:

• you ate too much chocolate

• lower GIT bleeeding

• nasobrahan ra kag kaon ug milk tea boba

• upper GIT bleeding

Chemical embedded in the paper/reagent strip (windows in the test pack)

• porphyrin

• hydrogen peroxide

• guaiac

Content of Developer bottle

• porphyrin

• hydrogen peroxide

• guaiac

The following substances may interfere and cause false positive results, except:

• Aspirin and anti-inflammatory medications

• Red meat

• Iron supplements containing vitamin C

• Horseradish

Hema-Screen will detect how many grams of hemoglobin per gram of homogenized fecal material?

• 5g

• 10 mg

• 10g

• 5mg

The guaiac paper tests detect occult blood but they are not diagnostic for diseases. 

• true

• false

Positive end color for HemaScreen

• yellow

• purple

• blue

Obtaining samples from the center of the stool avoids false-positive reactions from external contamination.

• true

• false

Annual testing for occult blood has a high positive predictive value for detecting colorectal cancer in the early stage.

• true

• false

Recommended diet prior to FOBT

• high carbohydrate

• high protein

• high residue