[QUIZ] NEMATODES (2nd Year BS Medical Technology) PDF

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| 10-3-2021 | 1CLINICAL PARASITOLOGYSamplex Module 2 – Post-task Quiz (Intestinal Nematodes) Module 2 – Post-task Quiz (Extraintestinal Nematodes)Transcribed by PORPIONMODULE 2 – POST-TASK QUIZ1. Visceral larva migrans is caused by? a) Ascaris suum b) E. vermicularis c) A. lumbricoides d) T. trichiu...

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CLINICAL PARASITOLOGY Samplex Module 2.1 – Post-task Quiz (Intestinal Nematodes) Module 2.2 – Post-task Quiz (Extraintestinal Nematodes) Transcribed by PORPION

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MODULE 2.1 – POST-TASK QUIZ Visceral larva migrans is caused by? a) Ascaris suum b) E. vermicularis c) A. lumbricoides d) T. trichiura All the following are true about nematodes except for? a) Adult worms are unsegmented b) Also termed as roundworms c) Circulatory system is present d) Adult worms are dioecious Lecithin membrane layer is absent in what stage of Ascaris lumbricoides ova? a) Unfertilized b) Embryonated c) Fertilized corticated d) Fertilized decorticated An Ascaris egg which lacks bile stained albuminoid layer. a) Unfertilized b) Fertilized decorticated c) Fertilized corticated An adult female nematode that lays immature eggs/ova? a) Larviparous b) Oviviparous c) Viviparous d) Oviparous Categorize each parasite based on location within the host a) C. philippinensis SMALL INTESTINE b) A. cantonensis MENINGES c) N. americanus SMALL INTESTINE d) E. vermicularis LARGE INTESTINE e) S. stercoralis SMALL INTESTINE

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Which of the following is not included in the ‘Unholy Three’? a) C. philippinensis b) N. americanus c) A. lumbricoides d) A. duodenale

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The only nematode that cannot be controlled through sanitary disposal of contaminated feces. a) E. vermicularis b) A. lumbricoides c) T. trichiura d) Hookworms

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Nematode egg with Chinese-lantern appearance. a) T. trichiura b) A. lumbricoides c) S. stercoralis d) E. vermicularis

10. Fill in the blanks with the correct answer that describes the ova of the mentioned nematodes. C. T. trichiura philippinensis Size SMALLER LARGER

Shell Shape Mucus plugs

STRIATED GUITARSHAPED Flattened

NON-STRIATED FOOTBALLSHAPED PROMINENT

11. Which of the following is used as a clearing agent for Kato-thick technique? a) Glycerol b) Saline solution c) Glycerin d) Malachite green 12. Causative agent of Cochin-china diarrhea? a) Threadworm b) Hookworm c) Seatworm d) Whipworm 13. Parasites included in the Order Adenopherea are aphasmids. a) True b) False (It should be Class Adenophorea) 14. Nematode with “D”-shaped ovum. a) N. americanus b) E. vermicularis c) A. lumbricoides d) T. trichiura

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MODULE 2.2 – POST-TASK QUIZ W. bancrofti causes lower elephantiasis. The microfilaria is unsheathed with no nuclei in the tail. a) Unsheathed with 2 separate nuclei in the tail b) Sheathed with no nuclei in the tail c) True d) Sheathed with nuclei continuous up to the tail

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Dog heartworm gives coin-like lesions in the lungs that can be seen in x-ray. This parasite has a complete digestive system and circulatory system. a) True b) No digestive system and complete circulatory system c) Complete digestive system and no circulatory system d) Complete digestive system and incomplete circulatory system

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L. loa is also known as blinding worm. The microfilaria is best recovered in the blood during midnight. a) True b) Worm worm – any time c) Eye worm – day time d) River blindness worm – night time

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Trichina worm larva resides in the nurse cells of striated muscles which was discovered by James Paget. a) True b) Richard Owen c) Dickson Despommier d) Tiedemann

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R. rattus var rattus is one of the definitive host of the Trichina worm. Definitive hosts harbor the asexual stage of the parasite. a) Intermediate host b) True c) Reservoir d) Paratenic host

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Gale filarienne is the common name of Dracunculus medinensis. Dracunculus medinensis is/are the 2nd | 10-3-2021 |

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most common cause of long term or permanent disabilities. a) Lymphatic filarial worms b) Subcutaneous filarial worms c) Body cavity filarial worms d) True 7.

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Microfilaria of new world filaria can be recovered during the evening. New world filaria is the common name of M. ozzardi. a) True b) Anytime – W. bancrofti c) Midnight – D. perstans d) Morning – M. perstans Man is the dead-end host for dragon worm. It is also the dead-end host for Herring’s worm. a) Muscle worm b) True c) Rat lungworm d) Medina worm B, malayi causes lower elephantiasis. Chronic manifestation of this parasite includes Calabar swelling. a) True b) W. bancrofti – hydrocele c) D. medinensis – Guinea worm disease d) L. loa – River blindness

10. Knott technique is a test that uses acetic acid as reagent. Acetic acid is used to easily visualize the adult worm of filaria in the blood/skin snips. a) Knott technique – microfilaria b) Diethylcarbamazine provocative test – microfilaria c) True d) Circulating filarial antigen – microfilaria 11. W. bancrofti is the common specie of filaria in the Philippines. B. malayi is the common specie in the Indonesian archipelago. a) True b) B. malayi – W. bancrofti c) B. timori – B. malayi d) W. bancrofti – B. timori

b) c) d)

Eosinophilic meningoencephalitis Filariasis Dracunculiasis

16. P. luzonica is the intermediate host for lungworms. It is the scientific name for kuhol. a) True b) B. asperata – kuhol c) P. luzonica – copepods d) P. luzonica – suso

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17. Convoluted worm is the 2nd most common cause of blindness. This parasite is also known as Gale filarienne. a) Herring’s worm – Trichina worm b) New world filaria – fiery serpent of Israelites c) Eye worm – Medina worm d) True 18. Mosquito is a known vector for lymphatic filariasis. Culex specie is a mosquito that is the vector of Malayan filarial worm. a) Aedes b) True c) Culiseta d) Mansonia 19. Copepods are known intermediate hosts of the longest nematode of man. It can also serve as the intermediate hosts of the Anisakis spp. a) True b) Suso – intermediate host c) Rat – definitive host d) Kuhol – definitive host 20. Man is the definitive host of Dracunculus medinensis. It also serves as the intermediate host for T. spiralis. a) Cyclops – W. bancrofti b) Dog – B. malayi c) True d) Suso – D. immitis

12. Convoluted worm causes eosinophilic meningoencephalitis. The mode of transmission of this parasite is ingestion of kuhol infected with adult worm a) True b) Rat lung worm – larva c) Dragon worm – adult worm d) Herring’s worm – larva 13. Culicoides species are the vectors of eyeworm. This vector also harbos M. perstans. a) M. ozzardi – M. perstans b) Rat lungworm – Anisakis spp. c) True d) Gale filarienne – L. loa 14. Microfilaria is the diagnostic stage for Parastrongylus cantonensis. The adult male worm of this parasite has characteristic of a barber’s pole. a) True b) Adult worm – adult female worm c) Adult worm – larva d) Ova – adult female worm 15. Diethylcarbamazine is the drug of choice for trichiasis. This can also stimulate microfilaria to come out to the bloodstream from its usual habitat a) True | 10-3-2021 |

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