Malaria Self Test Module
50 year old male patient presented with fever after holidaying in Viet Nam.
Click on one of the following:
Plasmodium falciparum?
Correct! Congratulations!
From time to time, in all laboratories things do not always run perfectly and occasionally
stained blood films exhibit background staining, hence the reason for deliberately using
this film. Despite the background staining on this slide, you were still able to make a
correct species identification. Well done!
Did you see the double chromatin dots, marginal forms and the
multiple parasites within the same red cell?
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Plasmodium vivax?
Sorry! Have another look.
Note that the infected red cells are not enlarged and that the ring forms are fine and delicate.
Look for marginal forms, double chromatin dots and the presence of multiple parasites
within the same red cell.
Now, after all those clues, try again!
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Plasmodium ovale?
Sorry! Have another look.
Note that the infected red cells are not enlarged and that the ring forms are fine and delicate.
Look for marginal forms, double chromatin dots and the presence of multiple parasites
within the same red cell.
Now, after all those clues, try again!
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Plasmodium malariae?
Sorry!
You probably noted that the infected red cells are NOT enlarged.
Did you see the the fine delicate ring forms? Look for marginal
forms, double chromatin dots and the presence of multiple
parasites within the same red cell.
Now, after all those clues, try again!
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Malarial parasites not seen?
Sorry! Have another look.
There are numerous small ring forms in this field.
Have another look and note particularly the size of the parasitised
red cells and look for marginal forms, double chromatin dots
and multiple parasites within the same red cell.
Try to identify the species before moving on to the next image.
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