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Practice Question

The ELISA is the common test used for antibody screening for HIV, various rickettsial species, hepatitis A and C, and Helicobacter, while the ELISA is used for the detection of hantavirus and measles virus in patient samples.

Answer Choices:

Correct Answer:

indirect; direct

Rationale:

⩥ Indirect ELISA detects antibodies in a patient’s serum, which is why it is commonly used for screening HIV, hepatitis, and rickettsial infections.

⩥ In this method, the patient’s antibodies bind to an antigen-coated surface, and then an enzyme-linked secondary antibody is used for detection.

⩥ Direct ELISA, on the other hand, detects antigens from the pathogen itself in patient samples.

⩥ This is particularly useful for diseases like measles or hantavirus, where the virus or antigen is directly identified.

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Microbiology Final

99 Questions

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Question Details
  • Category: PRE-REQUISITES NURSING COURSES
  • Subcategory: MICROBIOLOGY
  • Domain: MICROBIOLOGY_EXAMS
  • Answer Choices: 4
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