ATI RN
ATI Nur 105 Fundamentals Exam Questions
Extract:
Question 1 of 5
A nurse is caring for a client who has a prescription for a stool test for guaiac. The nurse understands the purpose of the test is to check the stool for which of the following substances?
Correct Answer: D
Rationale: The correct answer is D: Blood. The guaiac test is used to detect the presence of occult (hidden) blood in the stool, which may indicate gastrointestinal bleeding. The rationale is based on the principle that the guaiac reagent reacts with the heme portion of the blood, producing a blue color change. This test is commonly used for colorectal cancer screening and evaluation of gastrointestinal conditions.
Incorrect
Choices:
A: Steatorrhea - This refers to excessive fat in the stool, which is not detected by the guaiac test.
B: Parasites - The guaiac test does not detect parasites in the stool.
C: Bacteria - The guaiac test is not used to identify bacterial presence in the stool.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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