Camco Guaiac Tabs are made of refined and purified Guaiac Gum and are used to determine the presence of occult blood in a fecal sample. Each box contains 100 tablets and 100 filter paper squares for your convenience.

This simple, reliable test requires only a tablet, a filter paper square, glacial acetic acid and 3% hydrogen peroxide to complete the procedure in just 2 minutes. Developement of a blue color on the filter paper may indicate the presence of blood.

Materials needed but not provided:

• Wooden or plastic applicator sticks.
• Glacial Acetic Acid.
• Commercial Hydrogen Peroxide, 3%.

Directions:

1. Smear a small amount of stoll specimen on a square of filter paper supplied.
2. Place a Guaiac-Tab in the center of the specimen.
3. Flow two drops of glacial acetic acid and two drops of commercial 3% hydrogen peroxide onto the tablet.
4. Read results within two minutes. Ignore any color forming after two minutes.

Results:
Positive:
Moist area on filter paper appears blue within two minutes. If small amount of blood are present, color appears slowly and turns a light blue, Larger amounts appear blue more quickly and produce a deeper blue.
Negative:
No trace of blue color appears within two minutes.

For In Vitro Diagnostic Use