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RDT Quiz A Q3

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RDT Quiz A

1. When comparing RDT tests and morphology in the diagnosis of malaria which statements are true?

RDT tests offer superior species identification compared with microscopy
Well-trained microscopists diagnose malaria with equivalent or better sensitivity than RDT
MDT tests offer a more rapid initial diagnosis
RDT tests may be a preferred choice in some low-income countries
RDT tests provide a more accurate assessment of the % of infected red cells


Explanation of correct answer (click "Expand")
When no band appears in the control area (black arrow) the test is ALWAYS invalid:

Irrespective of whether any other bands are present, this is always an invalid test: do not interpret. Report as failed test
Action:

  • Repeat the test
  • Consider the reasons for test failure


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