The Difference Between Direct and Indirect Immunofluorescence Testing Is That

question 19

Multiple Choice

The difference between direct and indirect immunofluorescence testing is that

• A) Direct testing adds antibodies directly to antigens, whereas indirect testing cultures the organisms first and adds fluorescent tags to the patient sample.
• B) Direct testing determines the identity of an unknown antibody in a patient sample, whereas indirect testing determines whether the patient is infected with a specific antigen.
• C) Indirect testing determines the identity of an unknown antigen in a patient sample, whereas direct testing.determines whether the patient has been exposed to an antigen as evidenced by the presence of antibodies in their sera.
• D) Direct testing determines the identity of an unknown antigen in a patient sample, whereas indirect testing.determines whether the patient has been exposed to an antigen as evidenced by the presence of antibodies in their sera.

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