A patient 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 when the nurse explains which one of the following?
a. Sterile technique is used for collection.
b. Stool should be collected over a three-day period.
c. The specimen should be kept warm.
d. A 2.5-cm sample of formed stool is needed.
D
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A Clean technique is used for collection.
B Tests for measuring the output of fecal fat, not tests for occult blood, require a three- to five-day collection of stool.
C The specimen does not have to be kept warm for an occult blood test. Tests that measure for ova and parasites require the stool to be warm.
D Tests performed by the laboratory for occult blood in the stool and stool cultures require only a small sample. The nurse collects about 2.5 cm of formed stool or 15 to 30 mL of liquid stool.
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