Parasitology — Flashcards

Flashcard 1: Following is an egg of: _____

Answer: :)

Flashcard 2: Which form of Plasmodium spp. is seen here? _____

Answer: Schizont (with merozoites)

Flashcard 3: The following organism is _____

Answer: crab louse/Pthirus pubis

Flashcard 4: Following is an egg of: _____

Answer: :)

Flashcard 5: The following is an egg of _____

Answer: Fasciola hepatica

Flashcard 6: Following is an egg of: _____

Answer: :)

Flashcard 7: Following is an egg of: _____

Answer: :)

Flashcard 8: Following is an egg of: _____

Answer: :)

Flashcard 9: Following is an egg of: _____

Answer: :)

Flashcard 10: Following is an egg of: _____

Answer: :)

Flashcard 11: Following is an egg of: _____

Answer: :)

Flashcard 12: The following organism is _____

Answer: head louse/Pediculus humanus var. capitis

Flashcard 13: Following is an egg of: _____

Answer: :)

Flashcard 14: The given image is the trophozoite form of the _____.

Answer: Balantidium coli

Flashcard 15: The following organism is _____

Answer: Sarcoptes scabiei

Flashcard 16: Following are the eggs of _____

Answer: Toxocara canis

Flashcard 17: Kinyoun-positive oocysts with large sizes(25 μm), as in the image are formed by _____.

Answer: Cystoisospora

Flashcard 18: The egg in the image is of _____ and it is treated by praziquantel (5–10 mg/kg once)

Answer: Hymenolepis nana (dwarf tapeworm)

Flashcard 19: Following is an egg of: _____

Answer: :)

Flashcard 20: Which form of Plasmodium spp. is seen here? _____

Answer: Trophozoite (ring form)

Flashcard 21: The given image shows an ensheathed microfilariae and is suggestive of _____

Answer: Brugia malayi

Flashcard 22: example of cyclo devlopmental transmission

Answer: microfilaria means no proliferation in numbers only devloopment

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Flashcard 23: 0efba98c1935432194f6611424eef378-oa-4

Answer: primary vs secondary host

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Flashcard 24: 28e5375fcdc440af8c40905f92d918c6-oa-6

Answer: round worm vs hookworm

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Flashcard 25: _____ is the infective form of mite

Answer: larva

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Flashcard 26: in india,lymphatic filariasis is most commonly caused by _____

Answer: wuchereria bancrofti

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Flashcard 27: prepatent period of ankylostoma duodenale is _____

Answer: 5 weeks to 9 months

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Flashcard 28: life span of louse is _____

Answer: 20-30 days

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Flashcard 29: p.falciparum releases _____ merozoites/schizont in hepatocytic phase

Answer: 30,000-40,000

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Flashcard 30: 0efba98c1935432194f6611424eef378-oa-3

Answer: primary vs secondary host

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Flashcard 31: 0efba98c1935432194f6611424eef378-oa-1

Answer: primary vs secondary host

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Flashcard 32: whipworm causes _____ in children

Answer: dyssentry and diarrhea

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Flashcard 33: _____ is the IOC for diagnosis of lymphatic filariasis

Answer: thick peripheral blood film

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Flashcard 34: 28e5375fcdc440af8c40905f92d918c6-oa-4

Answer: round worm vs hookworm

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Flashcard 35: for lymphatic filariasis _____ is the definitive host and _____ is the intermediate host

Answer: man

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Flashcard 36: extrinsic incubation period of malaria is _____ days

Answer: 10-12

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Flashcard 37: siphon is _____ in aedes larvae

Answer: present

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Flashcard 38: prepatent period of necator americanus is _____

Answer: <7weeks

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Flashcard 39: 28e5375fcdc440af8c40905f92d918c6-oa-5

Answer: round worm vs hookworm

Extra: round worm is much longer 

Flashcard 40: duffy negative RBC are immune to _____

Answer: P.vivax

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Flashcard 41: lymphatic filariasis is caused by

Answer: wuchereria bancrofti-MC brugia malayi brugia timori

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Flashcard 42: 0efba98c1935432194f6611424eef378-oa-2

Answer: primary vs secondary host

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Flashcard 43: _____ is the 3rd mc soil transmitted helminthic infection

Answer: whipworm

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Flashcard 44: relapse is shown by plasmodium _____ and _____

Answer: vivax

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Flashcard 45: _____ form of leishmania is seen in non-vertebrates

Answer: promastigote

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Flashcard 46: round worm enters intestine _____ times during life cycle

Answer: 2

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Flashcard 47: source of ascaris egg is _____

Answer: soil

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Flashcard 48: rapid diagnostic test for kala azar uses _____ antigen

Answer: RK 39

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Flashcard 49: _____ gave life cycle of malarial parasite

Answer: ronald ross

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Flashcard 50: microfilaria can stay in the body for _____ after onset of acute stage

Answer: 10-15 years

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Flashcard 51: sarcoptes scabiei adult lives for _____ days

Answer: 20-30

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Flashcard 52: _____ is the gold standard for diagnosis of malaria

Answer: blood smear examination

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Flashcard 53: _____ is the infective form of hook worm

Answer: larva

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Flashcard 54: eggs of anopheles  are _____ shaped

Answer: boat

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Flashcard 55: _____ form of leishmania is seen in vertebrates

Answer: amastigote

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Flashcard 56: _____ causes mucocutaneous leishmaniasis

Answer: L.braziliensis

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Flashcard 57: _____ is infective form of transmission in ascariasis

Answer: egg

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Flashcard 58: plasmodia are seen in blood in _____ stage of malaria

Answer: cold

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Flashcard 59: _____ causes cutaneous leishmaniasis

Answer: L.tropica

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Flashcard 60: 1. Identify → _____ 2. Spreads → _____

Answer: Reduviid Bug 

Extra: y

Flashcard 61: 61b7ac26929c41bcb8bca9ea5fd0ef5b-ao-1[

Answer: cause of visceral leishmaniasis

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Flashcard 62: source of hook worm is _____

Answer: soil

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Flashcard 63: p._____ and p._____ plasmodium species are not found in india

Answer: ovale

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Flashcard 64: _____ is the primary vector for brugian filariasis

Answer: mansonia uniformis

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Flashcard 65: adult louse lays _____ eggs/day

Answer: 6-9

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Flashcard 66: _____ identified tse tse fly as cause of african sleeping sickness

Answer: bruce

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Flashcard 67: erythrocytic phase of plasmodium _____ is longest

Answer: malariae

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Flashcard 68: napiers aldehyde test is used for _____

Answer: surveilance of kala azar

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Flashcard 69: 28e5375fcdc440af8c40905f92d918c6-oa-1

Answer: round worm vs hookworm

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Flashcard 70: _____ is the infective form causing lymphatic filariasis

Answer: 3rd stage of larva

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Flashcard 71: round worm lays _____ eggs/day

Answer: 3.5 lac

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Flashcard 72: 28e5375fcdc440af8c40905f92d918c6-oa-2

Answer: round worm vs hookworm

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Flashcard 73: 28e5375fcdc440af8c40905f92d918c6-oa-3

Answer: round worm vs hookworm

Extra: not H for Hhard clay soil and soft porous soil

Flashcard 74: _____ form of E.Histolytica is infectious

Answer: cystic

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Flashcard 75: The _____ form of Entamoeba histolytica resides in the small intestines,while differentation to the trophozoite form occurs in the colon

Answer: cyst

Flashcard 76: Giardia is ingested in the _____ form. After ingestion, it differentiates into the trophozoite form.

Answer: cyst

Flashcard 77: _____ causes amoebic brain disease and is associated with freshwater sources

Answer: Naegleria fowleri

Flashcard 78: _____ vaginalis presents with motile trophozoites on wet mount microscopy

Answer: Trichomonas

Flashcard 79: Differentiation of Entamoeba histolytica to the trophozoite form in the colon allows the parasite to enter the _____ circulation and, eventually, the liver

Answer: portal

Flashcard 80: Toxoplasma gondii has a sexual _____ (gametocyte) phase and asexual bradyzoite or tachyzoite phase

Answer: oocyst

Flashcard 81: Recurrent _____ of Trypanosoma brucei are due to antigenic variation of surface glycoproteins

Answer: fevers

Flashcard 82: Neotropical echinococcosis is caused by Echinococcus _____ and Echinococcus oligarthrus.

Answer: vogeli

Flashcard 83: Due to villous atrophy in _____, deficiencies in epithelial brush border enzymes such as lactase may develop.

Answer: Giardia lamblia

Flashcard 84: _____ is a visceral protozoal infection that is diagnosed by the visualization of Trypanosoma cruzi on a peripheral blood smear.

Answer: Chagas Disease

Flashcard 85: The vector for transmission of _____ is a tsetse fly

Answer: Trypanosoma brucei

Flashcard 86: The cysts of _____ consist of 4 motile sporozoites

Answer: Cryptosporidium

Flashcard 87: _____ is painful pharyngitis caused by the presence of adult liver flukes on the posterior pharyngeal wall after eating raw sheep liver.

Answer: Halzoun

Flashcard 88: _____ of cryptosporidium attach to the intestinal wall, causing diarrhea and small intestine damage

Answer: Sporozoites

Flashcard 89: _____ shows jerky motility

Answer: Trichomonas

Flashcard 90: Trypanosoma brucei has two subspecies; either _____ or T. rhodesiense

Answer: T. gambiense

Flashcard 91: Cryptosporidia are _____-cellular, partially acid-fast staining organisms

Answer: uni

Flashcard 92: Diagnosis of the helminth _____ is made via the scotch tape test

Answer: Enterobius vermicularis (pinworm)

Flashcard 93: _____ can cause amoebic liver abscesses, which are described as having "anchovy paste" consistency

Answer: Entamoeba histolytica

Flashcard 94: _____ to 25 cysts (#) are required for Giardia lamblia (G. lamblia) infection.

Answer: 10

Flashcard 95: What diagnostic tests are run to test for Giardia?_____

Answer: Stool O&P (ova and parasites)

Flashcard 96: _____ is the etiology of Chagas Disease

Answer: Trypanosoma cruzi

Flashcard 97: _____ , a helminth, enters the blood through the intestinal wall, making their way to the lungs; mucociliary escalator eventually causes them to be swallowed into the GI tract

Answer: Ascaris lumbricoides

Flashcard 98: The eggs of _____ are boat-shaped with lateral floats.

Answer: Anopheles

Flashcard 99: Clonorchis: _____ are the first intermediate host and Fish are the second intermediate host.

Answer: Snails

Flashcard 100: _____ is a flagella-ted intestinal non-invasive parasite responsible for most flagellated protozoan small intestine colonizations in the U.S.

Answer: Giardia lamblia

Flashcard 101: Subcutaneous, '_____' swellings are diagnostic of the helminth Loa loa

Answer: Calabar

Flashcard 102: _____ that contain endocytosed RBCs are diagnostic of Entamoeba histolytica

Answer: Trophozoites

Flashcard 103: _____ oocysts can be visualized with an Acid-Fast (Ziehl-Neelsen) stain

Answer: Cryptosporidium

Flashcard 104: Clonorchis sinensis tends to inhabit the _____ and biliary tree

Answer: liver

Flashcard 105: Ingestion of Taenia _____ in contaminated water/food can result in Taeniasis (intestinal infection)

Answer: cysts

Flashcard 106: Leishmania donovani presents as _____ leishmaniasis, also known as kala-azar (black fever)

Answer: visceral

Flashcard 107: Which helminth is associated with consumption of undercooked crab meat infected with _____ larvae?Paragonimus westermani (lung fluke)

Answer: metacercariae

Flashcard 108: _____ dye test is gold standard for the diagnosis of Toxoplasmosis.

Answer: Sabin Feldman

Flashcard 109: The following are the parasites causing autoinfection (mnemonic: CHEST.C)C-_____H-Hymenolepis nanaE-Enterobius vermicularisS-Strongyloides stercoralisT-Taenia soliumC-Capillaria philippinensis

Answer: Cryptosporidium parvum

Flashcard 110: _____ medium is used for the culture of Trypanosoma and Leishmania

Answer: NNN (Novy, McNeal, and Nicolle)

Flashcard 111: The _____ mosquitoes carry sporozoites of Plasmodium spp. in their saliva

Answer: anopheles

Flashcard 112: What tests (3) are used to diagnose Entamoeba histolytica?_____; ELISA stool+serum antigen test; Serology to detect Entamoeba antibodies

Answer: Stool O&P (ova and parasites)

Flashcard 113: Bile stained eggs can be remembered by the mnemonic TAT:_____

Answer: Trichuris trichiura

Flashcard 114: Hookworms, a helminth, enter the _____ through the feet, making their way to the lungs; mucociliary escalator eventually causes them to be swallowed into the GI tract

Answer: blood

Flashcard 115: Which intestinal parasites are ingested via contaminated water in the cyst form?_____

Answer: Giardia

Flashcard 116: Schistosoma _____ has a large terminal spine

Answer: haematobium

Flashcard 117: _____ is a parasite commonly transmitted as oocysts in cat feces

Answer: Toxoplasma gondii

Flashcard 118: Infection of the helminth _____ occurs via drinking of water contaminated with larvae in copepods

Answer: Dracunculus medinensis

Flashcard 119: _____ of the helminth Toxocara canis can enter the eye and cause blindness

Answer: Larvae

Flashcard 120: Schistosoma _____ has a large lateral spine

Answer: mansoni

Flashcard 121: How is the presence of Strongyloides stercoalis diagnosed?_____, Eosinophilia

Answer: Larvae in stool O&P

Flashcard 122: Parasitological diagnosis in _____ is made by Demonstration of LD bodies in buffy coat smear

Answer: Kala Azar

Flashcard 123: Ingestion of Taenia solium _____ in contaminated water/food can result in neurocysticercosis

Answer: eggs

Flashcard 124: The _____ form of Leishmania spp. is found within macrophages

Answer: amastigote

Flashcard 125: Trophozoites of Plasmodium mature into _____, which rupture the hepatocytes and release merozoites

Answer: schizonts

Flashcard 126: _____ of Plasmodium from the ruptured hepatocytes go on to infect red blood cells

Answer: Merozoites

Flashcard 127: _____ is a parasite commonly transmitted as cysts in undercooked meat

Answer: Toxoplasma gondii

Flashcard 128: Which strain(s) of Plasmodium produce dormant hypnozoites in the liver?_____

Answer: Plasmodium vivax

Flashcard 129: _____ is a helminth that can form 'hydatid cysts' in the liver, lungs or brain

Answer: Echinococcus granulosus

Flashcard 130: _____ is a protozoal infection that occurs at a pH > 4.5

Answer: Trichomonas vaginalis

Flashcard 131: Sporozoites of Plasmodium from mosquitoes travel to the human _____, where they replicate and mature to trophozoites

Answer: liver (hepatocytes)

Flashcard 132: Babesiosis presents with _____ cells that contain a tetrad 'Maltese cross' structure

Answer: red blood

Flashcard 133: How is the presence of Ascaris lumbricoides diagnosed?_____, Eosinophilia

Answer: Eggs in stool O&P

Flashcard 134: _____ present on blood smear is diagnostic of Trypanosoma brucei infection

Answer: Trypomastigotes

Flashcard 135: _____ is the definitive host for guinea worm or Dracunculiasis.

Answer: Man

Flashcard 136: The _____ is necessary for Plasmodium vivax to infect cells

Answer: duffy antigen

Flashcard 137: G. lamblia trophozoites (active state) have _____ nuclei and 4 pairs of flagella (#) and resemble a face looking back at the viewer.

Answer: 2

Flashcard 138: Apart from Trypanosoma brucei, other parasites exhibiting antigenic variation include _____ and Giardia

Answer: Plasmodium spp.

Flashcard 139: After maturation in the abdomen, the helminth _____ migrates to the skin, inducing a painful ulcer

Answer: Dracunculus medinensis

Flashcard 140: _____ is a helminth that can result in Loeffler's syndrome (eosinophilic pneumonitis)

Answer: Ascaris lumbricoides

Flashcard 141: _____ are reservoirs for T. brucei gambiense

Answer: Humans

Flashcard 142: The larvae of _____ enter the blood and lay cysts in striated muscle

Answer: Trichinella spiralis

Flashcard 143: _____ is the intermediate host for Dracuculiasis

Answer: Cyclops

Flashcard 144: Immunodiffusion and counter current electro phoresis (CIEP) are used in _____ for detecting antibody against antigen-5 (arc-5)

Answer: hydatid disease

Flashcard 145: _____yzoites of Toxoplasma are formed within the intermediate host.

Answer: Tach

Flashcard 146: _____ is a helminth that can cause elephantiasis due to longstanding lymphedema

Answer: Wuchereria bancrofti

Flashcard 147: _____ is a helminth that can cause chronic cough with bloody sputum

Answer: Paragonimus westermani

Flashcard 148: _____ is a parasite that causes diarrhea in immunocompromised/suppressed (ie: HIV/AIDS) patients

Answer: Cryptosporidium

Flashcard 149: _____ is associated with granulomatous amoebic encephalitis and keratitis in contact lens wearers

Answer: Acanthamoeba spp.

Flashcard 150: The _____ stage is never seen in the peripheral smear of Plasmodium falciparum malaria.

Answer: schizont

Flashcard 151: Schistosoma _____ has a small terminal spine

Answer: japonicum

Flashcard 152: _____ is a helminth that can cause intestinal obstruction at the ileocecal valve

Answer: Ascaris lumbricoides

Flashcard 153: Entamoeba histolytica has two stages: an infective _____-nuclei cyst stage and a(n) invasive trophozoite stage.

Answer: 4

Flashcard 154: Non-Bile stained eggs can be remembered by the mnemonic A HEN:_____

Answer: Ankylostoma duodenale

Flashcard 155: _____, Feinberg-Whittington medium or PEM (Plastic envelope medium) are the media of choice for culturing Trichomonas vaginalis

Answer: CPLM (Cysteine-peptone-liver-maltose)

Flashcard 156: Helminths whose eggs float in a saturated salt solution can be remembered by mnemonic: THE FAN:T_____Hymenolepis nanaEnterobius vermicularisFertilized eggs of Ascaris lumbricoidesAncylostoma duodenaleNecator americanus

Answer: richuris trichiura

Flashcard 157: _____ in stool is diagnostic of Giardia infection

Answer: Trophozoites

Flashcard 158: _____ is a helminth known as 'African eye worm', as the adult form can migrate across the conjunctiva

Answer: Loa loa

Flashcard 159: The _____ stage of E. histolytica exhibits pseudopods, which allow the organism to move along the intestinal wall and take up nutrients.

Answer: trophozoite

Flashcard 160: The steatorrhea in Giardia is hypothesized to stem from excess _____ production that impairs fat absorption in the intestines

Answer: mucus

Flashcard 161: How is the presence of hookworms (Ancylostoma duodenale, Necator americanus) diagnosed?_____, Eosinophilia

Answer: Eggs in stool O&P

Flashcard 162: Giardia lamblia cysts become trophozoites in the _____ when stimulated by gastric acid after ingestion.

Answer: duodenum

Flashcard 163: What tests (3) are used to diagnose Entamoeba histolytica?_____; ELISA stool+serum antigen test; Serology to detect Entamoeba antibodies

Answer: Stool O&P (ova and parasites)

Flashcard 164: _____ can cause intestinal amebiasis, with ulcerations along the walls of the colon and bloody diarrhea

Answer: Entamoeba histolytica

Flashcard 165: Strongyloides stercoralis, a helminth, enters the _____ through the feet, making their way to the lungs; mucociliary escalator eventually causes them to be swallowed into the GI tract

Answer: blood

Flashcard 166: Which T-helper cells are active against helminthic parasites?_____

Answer: Th2

Flashcard 167: Which (infective) form of T. cruzi is released in the feces of reduviid bug?_____

Answer: Metacyclic Trypomastigotes

Flashcard 168: The dormant _____yzoites inside the toxoplasma cyst may be reactivated in immune suppression causing renewed infection in the host.

Answer: brad (tach/brad)

Flashcard 169: What is the infective stage of Schistosoma spp.?_____

Answer: Cercariae

Flashcard 170: The smallest nematode infecting man is _____

Answer: Strongyloides

Flashcard 171: What is the infective form of Trichuris trichiura?_____

Answer: Embryonated egg

Flashcard 172: Delhi boil is caused by Leishmania _____ complex (old world leishmaniasis)

Answer: tropica

Flashcard 173: Strongyloides are _____.

Answer: ovoviviparous (oviparous/viviparous)

Flashcard 174: Bachman's skin test is done in _____

Answer: Trichinellosis

Flashcard 175: _____ smear for malaria is more sensitive

Answer: Thick (Thin/Thick)

Flashcard 176: Echinococcocus _____ causes alveolar echinococcosis

Answer: multilocularis

Flashcard 177: Trypanosoma brucei _____ can cause myocarditis

Answer: rhodesiense

Flashcard 178: The smallest cestode infecting man is _____

Answer: Hymenolepis nana.

Flashcard 179: Frenkel's skin test is done in _____

Answer: Toxoplasmosis

Flashcard 180: The _____ period is the interval between the entry of the parasites into the host and the time when they first become detectable in blood.

Answer: pre-patent

Flashcard 181: The following organism is _____

Answer: head louse/Pediculus humanus var. capitis

Flashcard 182: The largest trematode infecting man is _____

Answer: Fasciolopsis buski

Flashcard 183: Induration of _____ mm or more is considered positive for Leishmanin (Montenegro) test

Answer: 5

Flashcard 184: DEC Provocation Test can be used as a survey test for diagnosis of _____

Answer: filariais

Flashcard 185: The infective stage of Toxoplasma found in the cat feces is _____.

Answer: oocysts

Flashcard 186: Which parasite class lacks a body cavity?_____

Answer: Cestodes and Trematodes

Flashcard 187: Which form of T. cruzi is seen in the midgut of reduviid bug?_____

Answer: Epimastigotes

Flashcard 188: Do the eggs of tenia solium float in saturated salt solution?_____

Answer: No

Flashcard 189: Parasite requires a single host to complete its development are said to have a _____ life cycle

Answer: direct

Flashcard 190: The vector for scrub typhus is _____

Answer: trombiculid mite

Flashcard 191: What is the infective form of Diphyllobothrium latum?_____

Answer: Plerocercoid larva

Flashcard 192: Plasmodium _____ has the shortest incubation period.

Answer: falciparum

Flashcard 193: What is the ONLY protozoan parasite found in the human small intestine?_____

Answer: Giardia lamblia

Flashcard 194: What are the screening tests of choice for hydatidosis?_____

Answer: Indirect hemagglutination test and enzyme-linked immunosorbent assay (ELISA) 

Flashcard 195: The _____ method is the most sensitive technique for diagnosing filariasis

Answer: membrane filter concentration (MFC)

Flashcard 196: What is the infective form of Trichinella spiralis?_____

Answer: First stage larva

Flashcard 197: Fairley's skin test is done in _____

Answer: Schistosomiasis

Flashcard 198: The first intermediate host of Diphyllobothrium spp. is _____

Answer: cyclops

Flashcard 199: _____ is known as serpent worm.

Answer: Dracunculus medinensis

Flashcard 200: What is the infective form of Hookworm?_____

Answer: Filariform larva

Flashcard 201: Which parasite class has suckers but lacks hooks?_____

Answer: Trematodes

Flashcard 202: _____ smear for malaria is used for determining the species

Answer: Thin (Thin/Thick)

Flashcard 203: Which intracellular replicating form of T. cruzi is seen in the tissues of the host (heart muscle, parasympathetic ganglia) ?_____

Answer: Amastigotes

Flashcard 204: Avidity test for Ig_____ is done in congenital toxoplasmosis to differentiate recent from past infection

Answer: G

Flashcard 205: Casonis skin test is done in _____

Answer: Hydatid disease.

Flashcard 206: Which parasite class species do not possess an alimentary canal?_____

Answer: Cestoda

Flashcard 207: Number of microfilaria/unit volume of blood (20 mm3) is known as _____ density

Answer: microfilaria

Flashcard 208: Which parasite class species possess an incomplete alimentary canal?_____

Answer: Trematoda

Flashcard 209: The smallest trematode infecting man is _____

Answer: Heterophyes

Flashcard 210: Oocysts of _____ are immediately infective after being excreted in the stool.

Answer: Cryptosporidium

Flashcard 211: Which parasite class has suckers and hooks?_____

Answer: Cestodes

Flashcard 212: Definitive host for Toxoplasma gondii is _____

Answer: cats

Flashcard 213: The following organism is _____

Answer: crab louse/Pthirus pubis

Flashcard 214: Following are the eggs of _____

Answer: Toxocara canis

Flashcard 215: Congenital toxoplasmosis can be diagnosed by detection of Ig_____ in cord blood

Answer: M

Flashcard 216: Which infective stage of Wuchereria is transmitted by culex mosquitoes?_____

Answer: Stage 3 filariform larva

Flashcard 217: Echinococcocus _____ causes cystic echinococcosis.

Answer: granulosus

Flashcard 218: The infective form of Strongyloides stercoralis is the _____ larva

Answer: filariform (rhabditiform/filariform)

Flashcard 219: Boeck and Drbohlav medium, Craigs medium and NIH polygenic medium are used for the culture of _____

Answer: E.histolytica.

Flashcard 220: Do the eggs of pinworm float in saturated salt solution?_____

Answer: Yes

Flashcard 221: Toxocara canis infecting humans is an example of _____ parasite

Answer: aberrant

Flashcard 222: Cutaneous larva migrans is most commonly caused by _____

Answer: Ancylostoma braziliense

Flashcard 223: A host in which the larval stage of the parasite remains viable without further development is referred to as the _____ host.

Answer: paratenic

Flashcard 224: What parasite class has all hermaphrodite members?_____

Answer: Cestodes and trematodes except Schistosoma

Flashcard 225: Katayama fever is most commonly caused by _____

Answer: S.mansoni.

Flashcard 226: Which parasite class species possess a complete alimentary canal?_____

Answer: Nematoda

Flashcard 227: Band forms are classically seen in P. _____

Answer: malariae

Flashcard 228: Which (infective) form of T. cruzi is seen in the host bloodstream?_____

Answer: Bloodstream Trypomastigotes

Flashcard 229: String test/Entero test is used in the diagnosis of _____.

Answer: giardiasis

Flashcard 230: Which parasite class lacks suckers and hooks?_____

Answer: Nematodes

Flashcard 231: Plasmodium _____ has the longest incubation period.

Answer: malariae

Flashcard 232: Amoebic liver abscess can be diagnosed by demonstrating trophozites in the _____.

Answer: pus

Flashcard 233: What parasite class has all diecious members?_____

Answer: Nematodes

Flashcard 234: Which stage of Schistosoma is seen in snails?_____

Answer: Miracidia

Flashcard 235: Two nuclei in the tail region are seen in _____

Answer: Brugia malayi (helminth)

Flashcard 236: Can the egg of T. saginata be differentiated from T. solium?_____

Answer: No

Flashcard 237: Patients infected with Schistosoma haematobium characteristically have _____ hematuria

Answer: terminal

Flashcard 238: What is the infective form of Clonorchis sinensis?_____

Answer: Metacercaria larva

Flashcard 239: What is the infective form in Dracunculiasis?_____

Answer: Thrid stage filariform larva

Flashcard 240: The longest cestode infecting man is _____

Answer: D. latum

Flashcard 241: Larva currens (meaning racing larvae ) is the rapidly progressing serpiginous urticarial tracks caused by migrating filariform larvae of _____

Answer: Strongyloides

Flashcard 242: The following is an egg of _____

Answer: Fasciola hepatica

Flashcard 243: No nuclei in the tail region are seen in _____

Answer: Wuchereria bancrofti (helminth)

Flashcard 244: The following organism is _____

Answer: Sarcoptes scabiei

Flashcard 245: What form is most commonly seen on peripheral blood smear in Babesia?_____

Answer: Ring form

Flashcard 246: What is the most common parasitic pathogen in humans?_____

Answer: Giardia lamblia

Flashcard 247: _____ dye test is gold standard for the diagnosis of toxoplasmosis

Answer: Sabin Feldman

Flashcard 248: The infective form of Entamoeba histolytica is the _____.

Answer: quadrinucleate cyst

Flashcard 249: For both Brugia malayi and Wuchereria bancrofti, the infective form to man is _____ larva.

Answer: third stage filariform

Flashcard 250: Schizonts and gametocytes are _____ in Babesiosis

Answer: absent

Flashcard 251: Infective and invasive form of Naegleria is the _____ trophozoite form.

Answer: amoeboid