Sporozoa Plasmodium Flashcards

(41 cards)

1
Q

Can cause malaria

A

Plasmodium spp.

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2
Q

What are the Plasmodium spp.?

A

P. falciparum
P. vivax
P. ovale
P. malariae

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3
Q

Lab diagnosis of Plasmodium spp.

A

Peripheral blood:

  • Giemsa stain
  • Wright’s stain
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4
Q

What P. spp can be mixed infections? (Most frequent)

A

P. vivax and P. falciparum

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5
Q

When is the best time of blood collection for diagnosis of P. spp?

A

During episodes of Paroxysms

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6
Q

at what hour does Paroxysms happen?

A

Every 6-12hrs up to 48hrs

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7
Q

2 qualitative analysis for P. spp

A

Thick smear

Thin smear

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8
Q

Dehomogenized smear to know if positive or negative for Plasmodium spp

A

Thick smear

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9
Q

Smear for specification of exact specie of P. spp

A

Thin smear

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10
Q

Usual start of the life cycle of Plasmodium spp. By taking?

A

Mosquitoes taling blood meal and inject the sporozoite

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11
Q

Stage occuring in liver

A

Exoerythrocytic stage

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12
Q

What the sporozoite does in exoerythrotic stage

A

Penetrates liver cells,
becomes a Schizont,
Rupture of liver cells w/ the schizont and RELEASE merozoites

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13
Q

Upon the release of Merozoites, what can happen to the infected human?

A

Chills and fever

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14
Q

Merozoites can also cause episodes of?

A

Paroxysms

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15
Q

Stage after exoerythrocytic stage

A

Erythrocytic stage

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16
Q

What happens in erythrocytic stage

A

Schizonts release sporozoite to infect other RBC

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17
Q

4 morphologic form of p

Plasmodium spp. In humans:

A

Ring form (immature troph)
Trophozoite
Schizont
Gametocyte

18
Q

Serologic tests for Plasmodium spp.

A

Malarial Rapid Diagnostic Test

Immunochromatographic method

19
Q

Antigens used in serologic test

A

Histidine Rich Protein II (HRP II)

Plasmodium Lactate Dehydrogenase (PLDH)

20
Q

Antigen for P. falciparum

A

Histidine Rich Protein II

21
Q

Benign tertian malaria

A

Plasmodium vivax

22
Q

Plasmodium vivax appearance of mature

23
Q

Plasmodium vivax

A

Any morphologic form can be seen

24
Q

Plasmodium ovale

A

All morphologic form can be seen

25
Ring form of P. ovale
Larger than vivax
26
Trophozoite of ovale
No notable ameboid appearance
27
Schizont of ovale
Rosette formation | -the choice to identify ovale from vivax
28
Gametocyte of ovale
Smaller than vivax
29
Quadnucleated
Plasmodium malaria
30
Ring form of P. malaria
Smaller than viva Rarelly visible in routine Usually cultured
31
Trophozoite of P. malaria
Cytoplasm is solid Darker than vivax and ovale In matured: no spaces in cytoplasm
32
Schizonts of P. malaria
Irregular rosette arragement | Basket appearance
33
Ring form of P. falciparum
Chromatin dot and cytoplasmic ring are smaller than vivax -usually cannot be found HEADPHONE CONFIGURATION
34
Developing troph of falciparum
Heavy rings
35
Schizont of falciparum
Mas kalat, RBCs cannot be seen
36
Gametocyte of falciparum
Sausage shape or cresent or banana shape
37
Plasmodium knowlesi
Commonly found in monkeys
38
Maurer's dot
Plasmodium falciparum
39
Schuffner's dot
Plasmodium vivax
40
James dot
Plasmodium ovale
41
Ziemann's dot
Plasmodium