KROK 1 2019 – Question 99 · KROK (Medicine) · Microbiology, Virology, and Immunology

Pathologic material (mucosal excretion from the nasal passages) obtained from a patient provisionally diagnosed with influenza was sent to the virological laboratory. What quick test allows detecting specific viral antigen in the investigated material?

  1. A. Direct and indirect immunofluorescence (IF)
  2. B. Radioimmunoassay (RIA)
  3. C. Reverse indirect hemagglutination (RIHA)
  4. D. Direct and indirect enzyme-linked immunosorbent assay (ELISA)
  5. E. Hemagglutination inhibition assay (HAI)
Hint

Ask which rapid method uses labelled antibodies to find viral antigen in the clinical specimen itself within hours, rather than culturing the virus or looking for antibodies in serum.

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