Helminthology Revision MCQ

بطلا ةيلك 

ةيبطلا تايليفطلا ملع مسق 

Helminthology Revision 

MCQ 

By 

Prof. Heba E. M. Abdel Aaty

Man acquire infection by the 

shown nematode due to 

consumption of green salad: 

a) prepared by an infected 

asymptomatic person 

b) prepared by an infected 

symptomatic person 

c) contaminated by infected 

human excreta that is not 

exposed to the sun 

d) contaminated by infected 

human excreta that is exposed 

to the sun

For treatment of a 

patient harbouring the 

shown parasite, the 

drug of choice is: 

a) Flubendazole 

b) Metronidazole 

c) Levamizole 

d)Tetrachloroethylene 

ucf.tekkom.ne

The shown sign happened 

after consumption of a meal 

of sausages. Which of the 

following investigations you 

recommend to confirm 

diagnosis: 

a) blood picture 

b) ECG 

c) muscle biopsy 

d) stool examination

In addition to the shown ocular 

manifestations, this patient 

suffered from Myalgia and fever . 

Muscle biopsy start to be 

positive post infection by the 

causative parasite at: 

a) 1-2 weeks 

b) 2-3 weeks 

c) 3-4 weeks 

d) 4-5 weeks 

Centers for Disease Control and Prevention and Dr. Thomas F. Sellers, Jr

The WHO recommended method 

for diagnosis other than the shown 

proctoscopic picture is stool 

examination by: 

a) Direct smear method 

b) ZnSo4 floatation 

c) Formol ether sedimentation 

d) Kato-Katz method

For treatment of the shown 

condition, the drug of 

choice is: 

a) Flubendazole 

b) Metronidazole 

c) Levamizole 

d) Albendazole

In the shown case infection is 

acquired by : 

a) Eating undercooked fish 

containing infective larvae 

b) Eating unwashed green 

vegetables containing 

infective eggs 

c) Drinking water contaminated 

by infected copepods 

d) Walking barefooted in 

infected soil

Eggs are the diagnostic and infective stages 

of the following parasites EXCEPT: 

a) Ancylostoma duodenale 

b) Ascaris lumbricoides 

c) Enterobius vermicularis 

d) Trichocephalus trichiurus

This middle aged male developed 

frequent seizures one and half 

year back. Currently he is 

receiving an antiepileptic and his 

seizures are under control. He has 

multiple lesions in brain in addition 

to the subcutaneous cysts shown 

in the figure. 

The WHO recommended lab test to 

confirm the diagnosis is : 

a) Enzyme immunoassay for 

hydatidosis 

b) Immunoblot for hydatidosis 

c) Enzyme immunoassay for 

cysticercosis 

d) Immunoblot for cysticercosis

The causative parasite of this 

condition is: 

a) Ancylostoma barziliense 

b) Ancylostoma duodenale 

c) Strongyloides stercoralis 

d) Trichostrongylus colubriformis

The figure shows central subretinal 

granuloma with one fibrous traction band 

detected by an examination of the eye 

fundus in a 16-year-old adolescent who 

has concomitant ascariasis and 

trichurisiasis. 

EIA is recommended using the 

secretory/excretory antigens of: 

a) Ascaris lumbricoides 

b) Trichuris trichiura 

c) Trichinella spiralis 

d) Toxocara canis

The preferred site for biopsy to 

detect the shown larvae is: 

a) Abdominal muscles 

b) Intercostal muscles 

c) Calf muscles 

d) Diaphragm

• In trichinosis, antibody peak post 

infection is at: 

a) 2 nd to 3 rd month 

b) 2 nd to 3 rd week 

c) 3 rd to 4 th month 

d) 3 rd to 4 th week

This condition is known 

as: 

a) Ground itch 

b) swimmer itch 

c) creeping eruption 

d) larva currens

• The WHO recommended test for diagnosis 

of neurocysticercosis is: 

a) Immunoblot using serum 

b) Immunoblot using CSF 

c) ELISA using crude antigen 

d) ELISA using purified antigen

This test was done to a 

child that have 

seizures and multiple 

subcutaneous cysts: 

The recommended lab 

sample for doing this 

test is: 

a) blood 

b) Cyst aspirate 

c) CSF 

d) Stool extract

The line of 

treatment of a 

patient who has 

seropositivity for 

all the shown 

bands includes: 

a) Praziquantel 

b) Niclosamide 

c) Mebendazole 

d) Flubendazole

The type of 

hydatid cyst 

that is shown in 

this cut section 

is: 

a) alveolar 

b) Unilocular 

c) Oseous cyst 

d) Sterile cyst

• The incidence of parasitic infection 

usually refers to: 

a) The parasite burden which the patient 

harbours 

b) The annual diagnosis rate of new cases 

c) The estimated population who harbour 

the infection at any time 

d) The constant rate of infection in the 

population at certain locality

• Kato-katz technique is not suitable for 

the epidemiological studies of: 

a) Trichuriasis 

b) Strongyloidiasis 

c) Ascariasis 

d) Ancylostomiasis

• The onset of egg excretion post infection 

by Fasciola is after: 

a) 3-4 month 

b) 5-7 month 

c) 3-4 weeks 

d) 5-7 weeks

• Which of the following parasites causes 

pernicious anaemia due to vit B12 

malabsorption? 

a) Diphyllobothrium latum 

b) Hymenolepis nana 

c) Fasciolopsis buski 

d) Heterophyes heterophyes

• Which of the following cestodes has its 

eggs are infective to man? 


b) Taenia saginata 

c) Echinococcus granulosus 

d) Dipylidium caninum

• Which of the following tests requires 

living antigen? 

a) COPT 

b) CFT 

c) IHAT 

d) IFAT

All the followings are direct methods for 

diagnosis of schistosomiasis mansoni 

except: 

a) Rectal swab. 

b) Circumoval precipitin test (COPT). 

c) Stool examination. 

d) Rectal snip transparency technique.

A 5-year-old child has mild abdominal 

pain and lack of appetite. Stool 

examination revealed the shown 

parasite. The best treatment for 

this child is a single dose of: 

a) Praziquantel. 

b) Niclosamide. 

c) Mebendazole. 

d) Albendazole.

To confirm diagnosis of human fascioliasis 

in the prepatent period, you have to ask 

the lab for : 

a) Stool examination for ova 

b) Differential leukocytic count 

c) Indirect haemagglutination test 

d) ELISA for coproantigens

Systemic manifestations accompanying 

hymenolepiasis nana are due to: 

a) Toxic metabolites 

b) An extraintestinal migratory cycle 

c) Internal autoinfection 

d) Egg emboli

Strict meat inspection can prevent the 

transmission of: 

A. Taenia saginata 

B. Echinococcus granulosus 

C. Hymenolepis nana 

D. Echinococcus multilocularis

The egg of the arrowed parasite 

in the shown barium meal is 

characteristically identified in 

faecal smear by the: 

a) outer coarse mammillations 

b) two bluntly rounded poles 

c) two polar mucoid plugs 

d) planoconvex contour

The diagnosis of the shown 

parasite is by: 

a) Stool examination 

b) Liver biopsy 

c) Perianal swab 

d) Proctoscopy

• Rodents are reservoir hosts in the life 

cycle of the following parasites EXCEPT: 

a) Hymenolepis nana 

b) Capillaria hepatica 

c) Schistosoma mansoni 

d) Trichostrongylus colubriformis

The classic anaemia due to the shown 

parasite is: 

a) Iron deficiency 

b) haemolytic 

c) Haemorrhagic 

d) hypoplastic

The infective stage of the shown 

parasite is the larva with: 

a) a bifid posterior end 

b) A sheath 

c) A large genital premordium 

d) A large oral vestibule 

atlas.or.kr

Lab diagnosis of the acute 

condition at any time of the 

day can rely on: 

a) Thick blood film examination 

b) Circulating antigens detection 

c) Nucleopore filteration 

d) Capillary tube centrifugation

The figures shows L.S. of a 

nematode in an intestinal 

biopsy specimen. Man 

acquire infection by 

ingestion of infective: 

a) eggs in insufficiently 

cooked fish 

b) larvae in insufficiently 

cooked fish 

c) eggs on insufficiently 

washed vegetables 

d) larvae on insufficiently 

washed vegetables

• Autoinfection is a character of the 

following parasites EXCEPT: 

a) Strongyloides stercoralis 



d) Capillaria philippinensis

The larval stage liberated from 

the shown egg can cause 

autoinfection to man . This 

egg belongs to: 

a) Capillaria philippinensis 


c) Trichuris trichiura 

d) Any of them

The drug of choice for treatment of 

patient passing the following egg after 

consumption of raw small whole fish is: 

A) Albendazole 

b) Mebendazole 

c) Flubendazole 

d) Triclabendazole

Myocarditis and heart failure may occur to a 

patient infected with: 

a) Ancylostoma duodenale 

b) Ascaris lumbricoides 


d) Trichinella spiralis

Infection by the following parasite may have 

a clinical picture like food poisoning: 

a) Ancylostoma duodenale. 

b) Enterobius vermicularis. 

c) Trichinella spiralis 


Fugitive swelling is due to infection with: 

a) Onchocerca volvulus 

b) Wuchereria malayi 

c) Wuchereria bancrofti 

d) Loa loa

Which parasite has a non sheathed 

microfilaria: 

a) Onchocerca volvulus 

b) Wuchereria malayi 

c) Wuchereria bancrofti 

d) Loa loa

Perianal swabbing is important in the 

diagnosis of: 

a) Trichocephalus tichiurus 

b) Enterobius vermicularis 

c) Ancylostoma duodenale 

d) Ascaris lumbricoides

The larvae of the following parasite may be 

detected in duodenal aspirate: 




d) Strongyloides stercoralis

The following parasite has no migratory 

phase in its life cycle: 


b) Ancylostoma duodenale 

c) Strongyloides stercoralis 

d) Ascaris lumbricoides

Xenodiagnosis can be used to diagnose 

infection with: 


b) Trichinella spiralis 



Rectal prolapse can be a complication of: 





The filariform larva of the following parasite 

has a notched tail: 





Larva currens is a clinical condition caused 

by: 





Anal pruritis is a manifestation for infection 

with: 





• All the following are fish transmitted 

parasites EXCEPT: 


b) Capillaria philippinensis 

c) Metegonimus yokogawi 

d) Fasciolopsis buski

• Dogs are reservoir hosts for the following 

parasites EXCEPT: 

a) Dipylidium Caninum 

b) Echinococcus granulosus 

c) Diphyllobothrium latum 

d) Heterophyes heterophyes

All of the following eggs are infective to 

man EXCEPT: 

a) Taenia solium. 

b) Taenia saginata. 

c) Hymenolepis nana. 

d) Echinococcus granulosus.

Helminthology Revision MCQ

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