Stool is collected at home and sent to a lab, which looks for small amounts of blood. You will be given instructions about how to use the kit at home, which medications and foods to avoid (such as non-steroidal anti-inflammatory drugs [NSAID] like ibuprofen and others) and where to send it when completed. Three stool samples are needed.
This test is no longer commonly used and has been mostly replaced by FIT.
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