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34 Cards in this Set
- Front
- Back
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Four species of Malarial parasites and % occurrence |
1. Plasmodium vivax - 80% 2. Plasmodium falciparum- 15% 3. Plasmodium malariae - 4% 4. Plasmodium ovale - 1% |
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What is the most deadly species of malaria |
Plasmodium falciparum |
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What is the most common species of malaria |
Plasmodium vivax |
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What is the species of mosquito that is the vector for malaria |
Anopheles mosquito |
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What does the parasite feed on inside the human? |
Plasmodium feeds on the hemoglobin inside the RBC |
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Which malarial species causes blackwater fever? what is that |
P. falciparum, dark urine from hemoglobinuria |
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What is Paroxysm? |
fever |
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All but one species of Plasmodium exhibits tertian paroxysm (days 1 and 3), what species doesn't? |
P. malariae. It has quartan periodicity (days 1 and 4) |
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2 rings inside one RBC: P. falciparum |
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P. falciparum! Its banana shaped gametocyte, the rest are round |
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P. falciparum! Multiple ring in one RBC |
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P. falciparum rings |
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P. vivax The RBC is enlarged b/c it infects young RBC |
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P. vivax mature schizont with lots (12-19) merozoites inside RBC enlarged b/c they infect young RBC |
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What stain must be used if you want to see Schuffners dots? |
Giemsa stain |
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P. vivax inside enlarged RBC |
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P. vivax Ring form with Schuffners dots |
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P. ovale Fimbriated RBC edges, heavy Schuffners dots |
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P. ovale Has less meroziotes (8 on ave) than P. vivax |
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P. ovale Fimbriated, enlarged RBC |
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P. ovale Darker heavy Schuffners dots |
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How do you know that this is definitely not p. falciparum? |
It's a round gametocyte, p. falciparum has banana shaped gametocytes |
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P. malariae Band form, smaller RBC |
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P. malariae Basket form, smaller RBC |
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P. malariae Rosette formation of merozoites inside schizont |
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Which malarial species forms characteristic rosette formations of merozoites in the schizont? |
P. malariae |
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Which two species of plasmodium rarely have Schuffner dots? |
P. falciparum and P. malariae |
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Which plasmodium species has characteristic band or basket forms? |
P. malariae |
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P. malariae band form |
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P. malariae Only 6 merozoites in schizont... P. vivax has 12+ |
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What is the vector for Babesia Whats the usual reservoir host? |
Tick White footed mouse |
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Babesia Pair and tetrad inside RBC Maltese Cross |
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Babesia Maltese Cross |
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Which two malarial species can remain dormant in the human, considered "relapse"? In which organ do the organisms remain? |
P. vivax and P. ovale In the liver |
