A client is to have a stool test for occult blood.The nurse is instructing the nursing assistant in the correct procedure for the test.The nursing assistant is correctly informed that:

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Tests performed by the laboratory for occult blood in the stool and stool cultures require only a small sample.The nurse uses clean technique to collect about 1 inch of formed stool or 15 to 30 mL of liquid stool.Unlike testing for occult blood,tests for measuring the output of fecal fat require a 3- to 5-day collection of stool,and tests that measure for ova and parasites require the stool to be warm.

A Client Is to Have a Stool Test for Occult