The test used to check for fecal material is the occult blood test, which detects hidden blood in the stool. Other tests like the fasting blood test and the 72-hour test have different purposes. The occult blood test is crucial for identifying potential gastrointestinal issues. ;
The occult blood test is used to check for hidden blood in fecal material, which can indicate health issues like gastrointestinal bleeding. Other tests, such as the fasting blood test and the 72-hour test, serve different purposes. Therefore, the correct answer is the occult blood test.
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