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RDT Quiz A Q4: Difference between revisions

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</br><span style="font-size:90%">Shown below is an RDT test. This uses a pan-malarial antibody (labelled Pan) and a ''P.falciparum'' species-specific antibody (labelled Sp). The test has been used to assess a patient and the positive bands are shown on the figure.</span>
</br><span style="font-size:90%">Shown below is an RDT test. This uses a pan-malarial antibody (labelled Pan) and a ''P.falciparum'' species-specific antibody (labelled Sp). The test has been used to assess a patient and the positive bands are shown on the figure.</span>
<gallery mode="nolines" widths=80px heights=250px>
<gallery mode="nolines" widths=80px heights=250px>
File:RDT multi posPF1.jpg|link={{filepath:RDT multi posPF1}.jpg}
File:RDT multi posPF1.jpg|link={{filepath:RDT multi posPF1.jpg}
</gallery>
</gallery>
<quiz display=simple>
<quiz display=simple>
{<span style="font-size:90%">Which of the following interpretions can be made? (select one or more options)</span></br></br>
{<span style="font-size:90%">Which of the following interpretions can reasonably be made? (select one or more options)</span></br></br>
|type="()"}
|type="()"}
- <span style="font-size:90%">1.  Consistent with a single species ''P.falciparum'' infection
+ <span style="font-size:90%">1.  Consistent with a single species ''P.falciparum'' infection
- <span style="font-size:90%">2.  Consistent with a single species non-''P.falciparum'' infection
- <span style="font-size:90%">2.  Consistent with a single species non-''P.falciparum'' infection
- <span style="font-size:90%">3.  Consistent with a dual species infection including ''P.falciparum''
+ <span style="font-size:90%">3.  Consistent with a dual species infection including ''P.falciparum''
- <span style="font-size:90%">4.  Consistent with a dual species infection not including ''P.falciparum''
- <span style="font-size:90%">4.  Consistent with a dual species infection not including ''P.falciparum''
- <span style="font-size:90%">5.  Suggests ''P.falciparum'' with ''HRP2'' gene-deletion
- <span style="font-size:90%">5.  Suggests ''P.falciparum'' with ''HRP2'' gene-deletion
+ <span style="font-size:90%">6.  An unreportable test
- <span style="font-size:90%">6.  An unreportable test
</quiz>
</quiz>


Revision as of 12:38, 24 November 2024

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RDT Quiz A Q4


Shown below is an RDT test. This uses a pan-malarial antibody (labelled Pan) and a P.falciparum species-specific antibody (labelled Sp). The test has been used to assess a patient and the positive bands are shown on the figure.

Syntax error

Which of the following interpretions can reasonably be made? (select one or more options)

1. Consistent with a single species P.falciparum infection
2. Consistent with a single species non-P.falciparum infection
3. Consistent with a dual species infection including P.falciparum
4. Consistent with a dual species infection not including P.falciparum
5. Suggests P.falciparum with HRP2 gene-deletion
6. An unreportable test


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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