Faecal Occult Blood Rapid Test Cassette

The FOB Rapid Test Cassette (Faeces) is a rapid chromatographic immunoassay for the qualitative detection of Human Occult Blood in faeces.

The FOB Rapid Test Cassette (Faeces) is a rapid test to qualitatively detect low levels of Faecal Occult Blood. The test uses a double antibody sandwich assay to selectively detect Faecal Occult Blood at 50ng/ml or higher, or 6μg/g faeces. In addition, unlike guaiac assays, the accuracy of the test is not affected by the diet of the patients.

For professional use only

Directions for use: collect faecal specimens

Allow the test, specimen, buffer and/or controls to reach room temperature (15-30°C) prior to testing. Collect faeces in a clean, dry specimen collection container. Best results will be obtained if the assay is performed within 6 hours after collection. Specimen collected may be stored for 3 days at 2-8°C if not tested within 6 hours.

Directions for use: process faecal specimens

Unscrew the cap of the specimen collection tube, then randomly stab the specimen collection applicator into the faecal specimen in at least 3 different sites. Do not scoop the faecal specimen. Screw on and tighten the cap onto the specimen collection tube, then shake the specimen collection tube vigorously to mix the specimen and the extraction buffer. Specimens prepared in the specimen collection tube may be stored for 6 months at -20°C if not tested within 1 hour after preparation.

Directions for use: running the test

Bring the pouch to room temperature before opening it. Remove the test cassette from the foil pouch and use it within one hour. Best results will be obtained if the test is performed immediately after opening the foil pouch. Hold the specimen collection tube upright and open the cap onto the specimen collection tube. Invert the specimen collection tube and transfer 2 full drops of the extracted specimen (approximately 80µL) to the specimen well (S) of the test cassette, then start the timer. Avoid trapping air bubbles in the specimen well (S).

Directions for use: reading the results

Read results at 5 minutes. Do not read results after 10 minutes.

Interpretation of results

POSITIVE:* Two lines appear. One coloured line should be in the control line region (C) and another apparent coloured line should be in the test line region (T). specimen. Therefore, any shade of colour in the test line region (T) should be considered positive. NEGATIVE: One coloured line appears in the control line region (C). No line appears in the test line region (T). INVALID: Control line fails to appear. Insufficient specimen volume or incorrect procedural techniques are the most likely reasons for control line failure. Review the procedure and repeat the test with a new test.

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