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Parasitology > Sir Edel’s Sample Questions > Flashcards

Sir Edel’s Sample Questions Flashcards

1
Q

If a susceptible host harbors the parasite inside his body, the host is said to be _________

A. Infested
B. Infected
C. Non-permissive host
D. Not affected

A

A. Infected (inside)

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2
Q

Which pair of protozoan is matched based on the presence of glycogen vacoule?

A. B. hominis and B. coli
B. E. coli and B. coli
C. B. hominis and I. butschlii
D. E. histolytica and E. nana

A

C. B. hominis and I. butschlii

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3
Q

Infective stage of T. vaginalis to man

A. Mature cyst
B. Pre-cyst
C. Metacyst
D. None of the above

A

D. None of the above (T. vaginalis has NO encystation)

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4
Q

“Strawberry cervix” is caused by one of the parasitic agent below

A. T. vaginalis
B. E. histolytica
C. N. gonorrhea
D. T. hominis

A

A. T. vaginalis

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5
Q

Skin penetration is not the mode of transmission of this parasite

A. Hookworm
B. Threadworm
C. Malaria
D. Schistosome

A

C. Malaria (Vector is the mode of transmission)

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6
Q

Formalin Ethyl Acetate technique is useful for the recovery of:

A. Trophozoite
B. Cyst
C. Trypomastigote
D. Sporozoite

A

B. Cyst

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7
Q

Indentation or opening found in the posterior end of B. coli is called?

A. Cytopyge
B. Acetabulum
C. Cytostome
D. Gonotyl

A

A. Cytopyge (posterior, anus-like structure)

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8
Q

True or False

Steatorrhea is the presence of more than 5 grams of fats in stool and this is common in Balantidiasis

A

False it is common in Giardiasis

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9
Q

True or False

Cytostomal fibril is found in C. mesnili

A

True since cytostomal fibril means imbeded in cytostome and C. mesnili is a flagellate

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10
Q

True or False

Antigen-antibody testing is the gold standard for the detection of T. vaginalis

A

False since the gold standard for T. vaginalis is culture (diamond medium)

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11
Q

The type of host that harbors the sexual stage of parasite is termed as:

A. Definitive host
B. Intermediate host
C. Reservoir host
D. Paratenic host

A

A. Definitive host or Final host

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12
Q

What are the solutions use din Direct Fecal Smear?

A. Water and formalin
B. Acetic acid and Ether
C. NSS and Lugol’s iodine
D. Glycerol and water

A

C. NSS and Lugol’s iodine (use NSS first followed by Lugol’s iodine)

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13
Q

The helminth that may cause severe anemia in heavy worm infection

A. Society worm
B. Threadworm
C. Hookworm
D. Trichina worm

A

C. Hookworm (treat anemia first before the hookworm)

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14
Q

The following sexual stage of nematodes parasitize the small intestinal tract of humans except:

A. Trichuris trichiura
B. Ascaris lumbricoides
C. Trichinella spiralis
D. Necatir americanus

A

A. Trichuris trichiura (large intestine and causes rectal prolapse)

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15
Q

The following pathology is associated with animal hookworm larva

A. Malnutrition
B. Larva migrans
C. Pneumonitis
D. Anemia
E. All of the above

A

B. Larva migrans since animal hookworm larva is a cutaneous larva migrans which cannot penetrate the stratum germinativum or stratum basale

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16
Q

The longest intestinal nematode is

A. A. lumbricoides
B. T. trichiura
C. C. philippinensis
D. D. medinensis

A

A. A. lumbricoides is the longest INTESTINAL NEMATODE

D. medinensis may be the longest among the choices however it is NOT an INTESTINAL NEMATODE

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17
Q

The trematode that is dioecious

A. Chinese liver fluke
B. Intestinal fluke
C. Lung fluke
D. Pancreatic fluke
E. None of the above

A

E. None of the about since the trematode that is dioecious is Schistosoma spp.

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18
Q

This is not present in the life cycle of schistosome

A. Miracidia
B. Metacercaria
C. Cercaria
D. A and B

A

B. Metacercaria

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19
Q

The ideal sample in diagnosing paragonimiasis in developing countries like the Philippines

A. Serum
B. Feces
C. Sputum
D. B and C
E. All of the choices

A

C. Sputum is the IDEAL SAMPLE while feces is the alternative sample especially in children

20
Q

Serological test utilizes shistosome egg as source of antigen

A. Casoni
B. Bachmann
C. COPT
D. Xenodiagnosis

A

C. COPT or circumoval precipitin test

21
Q

True or False

D. fragilis are hypothetically be co-exist with A. lumbricoides

A

True as well as it can co-exist with Enterobius vermicularis

22
Q

True or False

Cilia are absent in the cystic stage of B. Coli

A

True however it is still inside the cyst

23
Q

Zoonotic protozoan transmitted via tick bite (Ixodes sp.) and often confused for P. falciparum

A. Babesia microti
B. T. gondi
C. T. cruzi
D. L. donovani

A

A. Babesia microti (tick bites)

24
Q

Congenital transfer is possible for this protozoan

A. E. histolytica
B. T. hominis
C. T. gondii
D. T. tenax

A

C. T. gondii has a lot of mode of transmission including ingestion of oocysts, ingestion of raw or rare meat from infected host, TRANSPLACENTAL, transfusions, transplants, and transmammary

25
Q

Toxoplasma gondii is a parasite of:

A. Feline
B. Canine
C. Bovine
D. Avian

A

A. Feline

26
Q

Espundia is caused by one of the agents below

A. L. mexica
B. L. braziliensis
C. L. donovani
D. L. tropica

A

B. L. braziliensis since Espundia is the erosion of the nose

27
Q

Anopheles sp. transmits what stage of protozoan parasite?

A. Gametocyte
B. Amastigote
C. Trypomastigote
D. Sporozoite

A

D. Sporozoite is the infective stage of malaria in man

28
Q

Identify the characteristic of Quartan malaria mature schizonts

A. Band formation
B. Compact
C. Rosette appearance
D. Fimbriated

A

C. Rosette appearance

29
Q

The scolex of this parasite has an almond shape and a slit like sucker

A. D. latum
B. T. saginata
C. H. nana
D. A and B

A

A. D. latum scolex is spatulated or spoon-like with 2 slit-like grooves called bothrium

30
Q

First intermediate host of D. latum

A. Snail
B. Prawn
C. Crab
D. Fish
E. Copepod

A

E. Copepod

31
Q

In ruling out tuberculosis, sputum is stain with _____

A. Crystal violet-safeanin
B. Iodine-NSS
C. Carbol-fuchsin-methylene blue
D. India Ink-Carmine dye
E. Any of the choices

A

C. Carbol-fuchsin-methylene blue

32
Q

Which of the following is not included in the group habitat?

A. E. ilocanum
B. F. buski
C. A. malayanum
D. F. gigantica
E. M. yokogawai

A

D. F. gigantica is in the liver while the other choices are in the intestine

33
Q

Morphologically similar to E. histolytica

A. E. coli
B. E. dispar
C. E. hartmanii
D. None of the choices

A

B. E. dispar similar morphologic characteristics with E. histolytica and can be differentiated by means of molecular testing or PRC

34
Q

Stage of shistosomes infective to the mammals

A. Cercaria
B. Sporocyst
C. Egg
D. Miracidium
E. Adult

A

A. cercaria

35
Q

Prominent bipolar mucoid plugs is/are present in the ova this parasite

A. Pudoc worm
B. Whipworm
C. Trichina worm
D. Threadworm

A

B. Whipworm or Trichuris trichiura

36
Q

Fertilization of malarial microgametocyte will result to the development of:

A. Zygote
B. Cytozoite
C. Hypnozoite
D. Cyst

A

A. Zygote

37
Q

The specimen of choice in the diagnosis of rat lung worm

A. Rat muscle tissue
B. Cerebrospinal fluid
C. Stool sample
D. Sputum sample

A

B. Cerebrospinal fluid

38
Q

This drug is useful to treat trematode infection

A. Ivermectin
B. Albendazole
C. Metronidazole
D. Praziquantel

A

D. Praziquantel - treat trematode

Ivermectin - treats Strongyloides and Filaria
Albendazole- treats common intestinal parasites
Metronidazole - treats amoebic infection

39
Q

Protozoan with characteristic cork-screw like motility

A. C. mesnili
B. T. vaginalis
C. G. intestinalis
D. B. coli

A

A. C. mesnili - corkscrew like or boring motility

T. vaginalis - jerky tumbling motility
G. intestinalis - falling leaf motility
B. coli - thrown ball-like motility

40
Q

Which of the following is the mode of transmission of the agent of Diphyllobothriasis?

A. Contact transmitted
B. Vector borne
C. Food borne
D. Soil teansmitted

A

C. Food borne

41
Q

The most effective approach in parasitic disease prevention

A. Environmental sanitation
B. Proper waste disposal
C. Handwashing
D. Education and information

A

D. Education and information (always the most effective approach)

42
Q

Flash shaped ulcer is a common complication of what parasitic infection?

A. Amoebiasis
B. Giardiasis
C. Malaria
D. Balantidiasis

A

A. Amoebiasis

43
Q

Malaria parasite that prefers to infect young red blood cells

A. P. falciparum
B. P. vivax
C. P. ovale
D. P. malariae

A

B. P. vivax

P. falciparum - any RBC
P. malariae - adult RBC

44
Q

The intermediate host of Plasmodium falciparum

A. Man
B. Dogs
C. Cats
D. Cattle

A

A. Man is the intermediate host while mosquito is the final host

45
Q

The causative agent of dysentry like diarrhea

A. E. histolytica
B. G. lamblia
C. B. coli
D. E. nana

A

C. B. coli (ulceration or dysentery-like disease are caused by the trophozoite stage since they are invasive)

46
Q

A rhythmical cycle of fever, chills, and sweating is observed in what parasitic infection?

A. Amoebiasis
B. Giardiasis
C. Malaria
D. Trichomoniasis

A

C. Malaria (Fever, chills, and sweating)

47
Q

The following can be transmitted through blood transfusion except?

A. P. vivax
B. T. gondii
C. T. vaginalis
D. B. microti

A

C. T. vaginalis since it is only transmitted via the genitourinary tract

Parasitology (4 decks)

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