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RDT Quiz A Q4: Difference between revisions

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|colspan="1" style = "font-size:130%; color:black; background: EEEEEE"|<span style="color:black>'''RDT Quiz A Q4'''</span>
|colspan="1" style = "font-size:130%; color:black; background: EEEEEE"|<span style="color:black>'''RDT Quiz A Q4'''</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>
</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=300px heights=250px>
<gallery mode="nolines" widths=80px heights=250px>
File:multi posQ.jpg|<span style="font-size:80%">''Image from section "How RDT tests work"''</span>|link={{filepath:multi posQ.jpg}}
File:RDT multi posPF1.jpg|link={{filepath:RDT multi posPF1.jpg}
</gallery>
</gallery>
<quiz display=simple>
<quiz display=simple>
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+ <span style="font-size:90%">Single species: ''P.falciparum''
+ <span style="font-size:90%">Single species: ''P.falciparum''
- <span style="font-size:90%">Single species non-''P.falciparum''
- <span style="font-size:90%">Single species non-''P.falciparum''
+ <span style="font-size:90%">Two species including ''P.falciparum''
+ <span style="font-size:90%">Two species possible including ''P.falciparum''
- <span style="font-size:90%">Two species not including ''P.falciparum''
- <span style="font-size:90%">Two species possible not including ''P.falciparum''
- <span style="font-size:90%">''P.falciparum'' with ''HRP2'' deletion
- <span style="font-size:90%">''P.falciparum'' with ''HRP2'' deletion
- <span style="font-size:90%">This test cannot be reported
- <span style="font-size:90%">This test cannot be reported
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! colspan="1" | <span style="font-size:90%">Explanation of correct answer (click "Expand")
! colspan="1" | <span style="font-size:90%">Explanation of correct answer (click "Expand")
|-
|-
|<span style="font-size:90%">''Short answer taken from section "Interpretation of multi-band RDT Tests" (see this section for full details and links)''.</br></br>'''Most likely interpretation:''' The single species detected by the species specific band is present (this same species is also detected the pan-malaria band)
|<span style="font-size:90%">''Short answer taken from section "Interpretation of multi-band RDT Tests" (see this section for full details and links)''.</br></br>'''Most likely interpretation:''' The single species detected by the species specific band is present (this same species is also detected the pan-malaria band)</span>


<span style="font-size:90%">'''Less likely but possible interpretations:'''</span>
<span style="font-size:90%">'''Less likely but possible interpretations:'''</span>

Latest revision as of 09:45, 18 March 2025


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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.

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

Single species: P.falciparum
Single species non-P.falciparum
Two species possible including P.falciparum
Two species possible not including P.falciparum
P.falciparum with HRP2 deletion
This test cannot be reported


Explanation of correct answer (click "Expand")
Short answer taken from section "Interpretation of multi-band RDT Tests" (see this section for full details and links).

Most likely interpretation: The single species detected by the species specific band is present (this same species is also detected the pan-malaria band)

Less likely but possible interpretations:

  • There are two species present in the sample (likelihood depends on country of origin, but is less likely)
  • There is a false positive result causing both bands (unlikely)



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