sporozoa to babesia Flashcards

1
Q

Gametogony of Plasmodium species takes place in the:

A

intermediate host-humans

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2
Q

What is the infective stage of Plasmodium species to the mosquito vector?

A

gametocytes

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3
Q

what stage of Plasmodium species is responsible for the relapsing malaria cases?

A

hypnozoites

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4
Q

multiple infections are seen in the peripheral blood smear

A

p. falciparum

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5
Q

infected red cells have fimbriations

A

p. ovale

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6
Q

has the highest number of merozoites in Schizonts

A

p. vivax

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7
Q

band forms of trophozoites

A

malariae

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8
Q

Maurer’s dots

A

p. falciparum

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9
Q

Schuffner’s dots

A

vivax and/or ovale

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10
Q

James’ dots

A

ovale

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11
Q

Ziemann’s dots

A

p. malariae

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12
Q

crescent shaped gametocytes

A

malignant tertian malaria

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13
Q

rosette formation of merozoites in schizonts

A

benign quartan malaria

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14
Q

infected red cells are larger than the unaffected red cells

A

benign tertian malaria

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15
Q

Which of the following choices shows the correct order of malarial paroxysm?

a. sweating-hot-cold
b. cold-sweating-hot
c. hot-sweating-cold
d. cold-hot-sweating

A

d. cold-hot-sweating

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16
Q

the interval between the malarial paroxysms corresponds to the length of:

A

erythrocytic schizogony

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17
Q

Giemsa stain imparts what color to the cytoplasm of Plasmodium species?

A

blue

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18
Q

What is the interval of malarial paroxysms in infected caused by P. malariae in hours?

A

72

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19
Q

Headphone appearance of ring stage is seen in infection with _________

A

p. falciparum

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20
Q

infective stage of malaria to humans

A

sporozoite stage

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21
Q

multinucleated structure and a product of schizogony

A

schizont

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22
Q

exoerythrocytic schizogony meaning:

A

outside RBC

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23
Q

Erythrocytic schizogony, exo-erythrocytic schizogony, and gametogony are ______ process of reproduction in mosquito

A

asexual reproduction

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24
Q

intermediate host of malaria

A

man

25
Q

definitive host of malaria

A

Anopheles mosquito

26
Q

eccentric nucleus

A

macrogametocytes

27
Q

Granule-looking structures of the cytoplasm of the infected RBC

A

stipplings

28
Q

a protein composed of amino acids and will be used up by the parasite

A

globin

29
Q

a disposal product formed from the digestion of hemoglobin; insoluble crystallin form; can trigger inflammatory response

A

hemozoin

30
Q

T or F: The immature RBCs are larger than older RBCs

A

YES TRUE

immats = daks

31
Q

smaller Infected RBC

A

falciparum & malariae

32
Q

Ring has scanty cytoplasm (minimal volume) connected to one chromatin dot; with applique appearance

A

p. falciparum

33
Q

presence of schizonts and malarial pigment in the blood sample is an indication of _____ infection

A

severe

34
Q

you cannot find the schizont stage in the _________ since they are in the blood vessels, only allowing the ring stage and gametocytes to be seen.

A

capillary blood smear

35
Q

Appearance of “knobs” with adhesive proteins:

A
  1. Rosettins
  2. Riffins
  3. Histidine-rich protein
  4. Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP-1)
36
Q

Single mass of chromatin dot:

A

macrogametocyte

37
Q

characteristics of what parasite:

  • Multiple infection
  • Banana appearance of gametocyte
  • Has an applique appearance
  • Has a headphone-shaped appearance
A

p. falciparum

38
Q

Infected red cell of p. ovale is larger than unaffected red cells because of its ______ appearance

A

fimbriated appearance RBC

39
Q

has an amoeboid cytoplasm; schuffner’s dots; no multiple infection

A

p. vivax

40
Q

has the highest number of merozoites

A

p. ovale

41
Q

Old and small red cells; Ziemann’s dots

A

Plasmodium malariae

42
Q

Rosette form arranged around a central block of pigment (hematin)

A

schizont of p. malariae

43
Q

Group of signs and symptoms that will occur to the patient and has 3 stages

A

paroxysms

44
Q

has a tertian malaria pattern

A

Plasmodium vivax

Plasmodium ovale

45
Q

________ malaria is when the patient becomes symptomatic again in day 4

A

quartan malaria in p. malariae

46
Q

has the shortest incubation period (8-15 days) and prepatent period (11-14 days)

A

P. falciparum

47
Q

Longest incubation period (18-40 days) and prepatent period (3-4 weeks)

A

P. malariae

48
Q

this is an interval between sporozoite injection and the appearance of clinical symptoms

A

INCUBATION PERIOD

49
Q

Originally known to cause simian malaria

A

Plasmodium knowlesi

50
Q

reservoir hosts of p. knowlesi

A

long-tailed macaque (Macaca fascicularis),
pig-tailed macaque (Macaca nemestrina)
banded leaf monkey (Presbytis melalophos)

51
Q

_______ malaria tends to have fevers that spike every 24 hours and is called “daily” or “quotidian” malaria

A

P. knowlesi

52
Q

cerebral gray mater infarction caused by:

A

p. falciparum

53
Q

_______ smears are composed of layers of dehemoglobinized (lysed) red blood cells (RBCs)

A

thick film smears

54
Q

Infection of RBC often producing febrile illness

A

Babesiosis

55
Q

do not produce gametocytes and pigment

A

babesia

56
Q

Evidence of Maltese cross formation

A

Babesia microti infection

57
Q

Tick vector of Babesia

A

Ixodes scapularis

58
Q

treatment for babesiosis

A

clindamycin plus quinine
or
atovaquone plus azithromycin