Which of the following occult blood tests does not require a restrictive diet prior to testing because it uses an antibody-antigen reaction to detect human blood rather than the guaiac methods, which detect any blood (i.e., red meat in the stool)?

Question

Quizplus · Accepted Answer

The iFOB method uses an antibody-antigen reaction to specifically detect human blood, unlike the guaiac-based methods. Therefore, the iFOB method does not require a restrictive diet before testing. Choices A and C both involve the guaiac-based methods and require a restrictive diet before testing. Choice D is incorrect because the iFOB method does not require a restrictive diet before testing.

Which of the Following Occult Blood Tests Does Not Require