Difficulty: Medium
Average Score: 94%
Practice
A nurse is providing instructions to a client who will collect a stool specimen for occult blood. The nurse instructs the client to avoid which of the following for 3 days before the collection of the stool specimen?
Correct answer
C
Rationale
The correct answer is C: Turnips. Turnips contain peroxidase enzymes that can cause false-positive results in occult blood tests. Therefore, the client should avoid consuming turnips for 3 days before collecting the stool specimen.
Incorrect options:
A: Milk products - Milk products do not interfere with occult blood tests.
B: Hard cheese - Hard cheese does not contain peroxidase enzymes that would affect the test results.
D: Cottage cheese - Cottage cheese also does not contain peroxidase enzymes that would interfere with the test.
Incorrect options:
A: Milk products - Milk products do not interfere with occult blood tests.
B: Hard cheese - Hard cheese does not contain peroxidase enzymes that would affect the test results.
D: Cottage cheese - Cottage cheese also does not contain peroxidase enzymes that would interfere with the test.