Infective and Diagnostic forms Flashcards

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1
Q

DIphyllobothrium latum

A

IF - Plerocercoid larva

DF- Eggs, segments of tapeworm

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2
Q

Taenia saginata

A

IF - Cysticercus bovis

DF - Egg

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3
Q

Taenia solium

A

IF - Cysticercus cellulosae

DF - Egg (for intestinal taeniasis) / larvae (for cysticercosis)

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4
Q

Echinococcus

A

IF - Egg

DF - Protoscolices and brood capsules

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5
Q

Hymenolepsis nana

A

IF - Egg

DF - Egg

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6
Q

Schistosoma

A

IF - Cercariae

DF - Nonoperculated eggs

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7
Q

Fasciola hepatica

A

IF - Metacercaria larva

DF - Operculated eggs

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8
Q

Fasciolopsis buski

A

IF - Metacercaria larva

DF - Operculated eggs

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9
Q

Paragonimus westermani

A

IF - Metacercaria larva

DF - Operculated eggs

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10
Q

Clonorchis sinensis

A

IF - Metacercaria larva

DF - Operculated eggs

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11
Q

Ascaris lumbricoides

A

IF - Egg

DF - Unembryonated eggs in stool

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12
Q

Hookworm

A

IF - Filariform larva

DF - eggs (in fresh stool) / larva (in old stool)

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13
Q

Strongyloides

A

IF - Filariform larva

DF - Rhabditiform larva

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14
Q

Trichuris

A

IF - Embryonated egg

DF - Unembryonated egg

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15
Q

Enterobius

A

IF - Egg

DF - Eggs (from perianal skin)

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16
Q

Filarial nematodes

A

IF - Third stage Filarial larva (L3)

DF - Microfilaria

17
Q

Trichinella spiralis

A

IF - First stage larva (L1)

DF - Trichinella antibody test

18
Q

Dracunculus medinensis

A

IF - Third stage filariform larva (L3)

DF - Adult worm

19
Q

Entamoeba histolytica

A

IF - Mature quadrinucleate cyst

DF - Trophozoites, quadrinucleate cyst

20
Q

Giardia lamblia

A

IF - Quadrinucleate cyst

DF - Trophozoites, cyst

21
Q

Trichomonas vaginalis

A

IF - Trophozoites

DF - Trophozoites

22
Q

Naegleria fowleri

A

IF - Trophozoite

DF - Trophozoite in CSF

23
Q

Acanthamoeba

A

IF - Trophozoites and cysts

DF - Trophozoite in CSF

24
Q

Leishmania donovani

A

IF - Promastigote

DF - Amastigote in macrophage

25
Q

Trypanosoma cruzi

A

IF - Metacyclic Trypomastigote

DF - Trypomastigote

26
Q

Trypanosoma brucei

A

IF - Metacyclic Trypomastigote

DF - Trypomastigote

27
Q

Balantidium coli

A

IF - binucleate Cysts

DF - Trophozoite and Cysts

28
Q

Plasmodium

A

IF - Sporozoites

DF - Schizont, immature trophozoite, mature trophozoite, gametocyte

29
Q

Toxoplasma gondii

A

IF - All 3 morphological forms - oocyst, tachyzoite, bradyzoite
DF - Tachyzoites, tissue cysts

30
Q

Cryptosporidium

A

IF - Sporulated oocyst

DF - Sporulated oocyst

31
Q

Cyclospora

A

IF - Sporulated oocyst

DF - Unsporulated oocyst

32
Q

Isospora

A

IF - Sporulated oocyst

DF - Unsporulated oocyst