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PARASITOLOGY > nematodes > Flashcards

nematodes Flashcards

1
Q

most common and largest intestinal nematodes in man

a. trichuris trichuria
b. ascaris lumbricoides
c. strongyloides stercolaris
d. anyclostoma duodenale

A

A. lumbricoides
- MOST COMMON AND LARGEST INTESTINAL NEMATODE OF MAN

T. trichuria
- NEXT MOST COMMON INTESTINAL ROUNDWORM OF MAN

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2
Q

WHAT IS THE COMMON NAME FOR A. lumbricoides

a. threadworm
b. giant intestinal roundworm
c. dog hookworm
d. whipworm

A

A. lumbricoides
- giant intestinal roundworm

T. trichuria
- whipworm

Ancylostoma duodenale
- dog hookworm

Strongyloides stercolaris
- threadworm

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3
Q

what test is highly recommended for diagnosing trichluris trichuria?

a. brine floatation technique
b. horada mori
c. kato katz
d. scotch tape technique

A

kato katz
- for Trichluris trichuria

Brine floatation and horada mori
- hookworms

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4
Q

Cat hookworm

a. necator americanus
b. ancylostoma duodenale
c. ancylostoma caninum
d. ancylostoma braziliense
e. ancylostoma ceylanicum

A

a. necator americanus
- NEW world hookworm

b. ancylostoma duodenale
- OLD world hookworm

c. ancylostoma caninum
- DOG hookworm

d. ancylostoma braziliense
- CAT hookworm

e. ancylostoma ceylanicum
- SMALLEST hookworm

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5
Q

SMALLEST hookworm

a. necator americanus
b. ancylostoma duodenale
c. ancylostoma caninum
d. ancylostoma braziliense
e. ancylostoma ceylanicum

A

a. necator americanus
- NEW world hookworm

b. ancylostoma duodenale
- OLD world hookworm

c. ancylostoma caninum
- DOG hookworm

d. ancylostoma braziliense
- CAT hookworm

e. ancylostoma ceylanicum
- SMALLEST hookworm

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6
Q

old world hookworm

a. necator americanus
b. ancylostoma duodenale
c. ancylostoma caninum
d. ancylostoma braziliense
e. ancylostoma ceylanicum

A

a. necator americanus
- NEW world hookworm

b. ancylostoma duodenale
- OLD world hookworm

c. ancylostoma caninum
- DOG hookworm

d. ancylostoma braziliense
- CAT hookworm

e. ancylostoma ceylanicum
- SMALLEST hookworm

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7
Q

what is the infective stage of hookworm

a. rhabdiform larva (L1)
b. unembryonated egg
c. embryonated egg
d. fulariform larva (L3)

A

hookworm

  • IS : FILARIFORM LARVA (L3)
  • ds : OVA
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8
Q

which of the following hookworms have a well developed buccal capsules with th epresence of semi lunar cutting plates

a. necator americanus
b. ancylostoma duodenale
c. ancylostoma caninum
d. ancylostoma braziliense
e. ancylostoma ceylanicum

A

necator americanus
- well developed buccal capsules characterized with the presence of semi lunar cutting plates

Ancylostoma duodenale
- two pairs of ventral teeth

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9
Q

which of the following hookworms have their buccal capsules , two pairs of ventral teeth

a. necator americanus
b. ancylostoma duodenale
c. ancylostoma caninum
d. ancylostoma braziliense
e. ancylostoma ceylanicum

A

necator americanus
- well developed buccal capsules characterized with the presence of semi lunar cutting plates

Ancylostoma duodenale
- two pairs of ventral teeth

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10
Q

wakana disease

a. trichuris trichuria
b. ascaris lumbricoides
c. strongyloides stercolaris
d. anyclostoma duodenale

A

ancylostoma duodenale / hookworms

pathology due to larval stage

  1. ground itch or coolie itch
  2. pulmonary lesion or WAKANA DISEASE
  3. creeping eruption or cutaneous larva migrans
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11
Q

hypoalbuminemia

a. trichuris trichuria
b. ascaris lumbricoides
c. strongyloides stercolaris
d. necator americanus

A

necator americanus / hookworms

pathology due to adult worms

  1. hookworm anemia / IDA / microcytic anemia
  2. HypOalbuminemia
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12
Q

GROUND ITCH is produced by the ______

a. necator americanus
b. ancylostoma duodenale
c. ancylostoma caninum
d. ancylostoma braziliense
e. ancylostoma ceylanicum

A

GROUND ITCH is produced by the cutaneous wandering of CAT OR DOG HOOKWORMS of the genus Anyclostoma

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13
Q

what test is specific for hookworms

a. brine floatation technique
b. horada mori
c. kato katz
d. scotch tape technique

A

kato katz
- for Trichluris trichuria

Brine floatation and horada mori
- hookworms

brine flotation (specific for hookworms)

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14
Q

how many hours does the fecal specimen should be standy before performing the brine floatation technique

a. 12 hours
b. 8 - 14 hours
c. 12 - 24 hours
d. 24 - 72 hours

A

brine flotation technique
when stool have stood for 12 to 24 hours before the examination was done. some eggs hatched and the rhabdiform larvae should be differentiated form those of Strongyloides stercolaris using HORADA MORI (culture method)

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15
Q

adult : short buccal capsule but with the large genital primoridium

a. hookworms
b. trichluris trichuria
c. strongyloides stercolaris
d. capilaria philippinensis

A

Strongyloides stercolaris
- adult : short buccal capsule but with the large genital primoridium

hookworms
- adult : long buccal capsule but with the short genital primoridium

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16
Q

which of the following nematodes can cause cochin china diarrhea

a. strongyloides stercolaris
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

strongyloides stercolaris

- cause : Cochin china diarrhea

17
Q

most common helminth parasite identified in temperature region

a. strongyloides stercolaris
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

enterobius vermicularis

  • most common helminth parasite identified in temperature region and most prevalent helminth infection throughout the world
18
Q

society worm

a. strongyloides stercolaris
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

Enterobius vermicularis

  • Pinworm
  • seatwrom
  • society worm

Capillaria philippinensis

  • mystery worm
  • pudoc worm
19
Q

mystery worm

a. strongyloides stercolaris
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

Enterobius vermicularis

  • Pinworm
  • seatwrom
  • society worm

Capillaria philippinensis

  • mystery worm
  • pudoc worm
20
Q

which of the following nematode perform the graham scotch tape anal swab

a. strongyloides stercolaris
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

Enterobius vermicularis

21
Q

the ova shapes is similar to letter D

a. hookworms
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

Letter “C”
- hookworms

letter “D”
- Enterobius vermicularis

22
Q

which of the following nematodes can cause perianal itching

a. strongyloides stercolaris
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

enterobius vermicularis
- can cause : Salphingits
perianal
perineal itchinig

23
Q

has a peanut shaped ova

a. strongyloides stercolaris
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

capillaria philippinensis

- ova : Peanut shaped or Guitar shaped

24
Q

how many hours does the larva mature inside the cell

a. 12- 24 hrs
b. 12 hrs
c. 4- 6 hours
d. 4 hours

A

larva inside the eggs mature within 4 - 6h ours after oviposition

25
Q

which of the following nematode has a pitted like a golf ball

a. capillaria hepatica
b. necator americanus
c. capillaria philippinensis
d. enterobius vermicularis

A

capillaria hepatica

  • adult worm resembles A. trichuria
  • lemon shaped eggs
  • outer shells that are PITTED LIKE A GOLF BALL

PARASITOLOGY (12 decks)

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