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3RD SEM 2J - PARA LEC > NEMATODES - Capillaria philippinensis, Enterobius vermicularis > Flashcards

NEMATODES - Capillaria philippinensis, Enterobius vermicularis Flashcards

1
Q

common name for c. philippinensis

A

pudoc worm

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2
Q

mode of transmission

A

ingestion of raw freshwater fish

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3
Q

types of freshwater fish that acts as intermediate host for c. philippinensis

A

bagsit, birut, bagsang

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4
Q

CP: where do embryonation takes place

A

water

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5
Q

CP: type of femle that immediately produces larva = autoinfection

A

larviparous larva

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6
Q

CP: infective stage

A

encysted larva in freshwater fish

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7
Q

CP: diagnostic stage

A

unembryonated egg in stool

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8
Q

CP: describe posterior and anterior end

A

Posterior: rounded
Anterior: tapered/pointed

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9
Q

CP: unique feature; whole esophagus is called

A

stichosome

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10
Q

CP: rows of secretory cells; each compartment/striation/cell of the esophagus is called

A

stichocytes

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11
Q

CP: border of anterior and posterior in females

A

vulva

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12
Q

CP: posterior end of females

A

uterus

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13
Q

CP: parasites embedded on the walls of the intestine can cause

A

micro-ulcers
mechanical compression

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14
Q

patients w/ c. philippinensis cannot absorb and digest food properly = diarrhea due to

A

atrophied villi

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15
Q

CP: production of carbon dioxide due to digestion of carbohydrates by bacteria

A

gurgling (borborygmus)

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16
Q

CP: protein-losing enteropathy causes; happens when hydrostatic pressure is not opposed due to the absence of albumin

A

edema

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17
Q

CP: absent electrolytes causing electrolyte imbalance = death

A

sodium
potassium
calcium

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18
Q

malbasorption of fats and sugar

A

c. philippinensis

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19
Q

CP: reservoir host

A

migratory birds

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20
Q

describe tha egg shape of c. philippinensis

A

peanut shaped w striated shells and flattened bipolar plugs

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21
Q

natural hosts for the CP

A

fish-eating birds

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22
Q

CP superfamily

A

Trichinelloidea

23
Q

CP: incidental host

A

humans

24
Q

usuall clinical manifestation for persons w c. philippinensis

A

abdominal pain
borborygmi

25
Q

test shown to have 100% sensitivity and specificity in the diagnosis of capillariasis

A

Enzyme-Linked Immunosorbent Assay (ELISA) using T. spiralis antigen

26
Q

CP: drug of choice

A

albendazole

27
Q

CP: parasites can be recovered from the intestine through

A

duodenal aspiration

28
Q

describe the male spicule of CP

A

has unspined sheath

29
Q

similar feature of CP with SS

A

bipolar plugs

30
Q

fluid and electrolyte replacement treatment for CP

A

oresol
dextrose

31
Q

EV: infective stage

A

embryonated ova

32
Q

EV: diagnostic stage

A

eggs on perianal folds

33
Q

EV: anterior and posterior

A

Anterior: cuticular alar expansions (cephalic alae)
Posterior: prominent posterior esophageal bulb

34
Q

common name of e. vermicularis

A

pinworm

35
Q

EV: dies after copulation

A

male

36
Q

defining feature of e. vermicularis

A

presence of cervical alae

37
Q

EV: for mechanical protection

A

outer triple albuminous covering

38
Q

EV: for chemical protection

A

inner embryonic lipodal membrane

39
Q

method of lab diagnosis for e. vermicularis

A

Graham’s scotch adhesive tape swab / perianl cellulose tape swab

40
Q

only nematode that cannot be controlled by proper human waste disposal

A

e. vermicularis

41
Q

e. vermicularis infection is characterized by

A

perianal itching or pruritus ani

42
Q

most common helminth parasite identified in temperate regions

A

e. vermicularis

43
Q

EV: MIGRATE to the perianal area during evening hours

A

adult female worms

44
Q

EV: migrate down the intestinal tract –> anus to DEPOSIT EGGS on the perianal skin

A

gravid female worms

45
Q

EV: has esophageal bulb but absent cephalic alae

A

rhabditiform larvae

46
Q

EV: female usually dies after ?

A

egg deposition

47
Q

EV: eggs remain viable in moist conditions for up to ?

A

13 days

48
Q

EV: eggs remain viable longest under what condition

A

fairly high humidity
moderate temperature

49
Q

pinworm eggs have occassionaly been reported from these ectopic sites

A

lung and liver

50
Q

e. vermicularis is describes as

A

familial or a group disease

51
Q

EV: cure is only considered after - using scotch-tape method

A

consecute 7 perianal smears (negative)

52
Q

EV route of infection

A

mouth
respiratory system (via inhalation)
Anus (retroinfection)

53
Q

EV prevalence is consistently high in

A

females

3RD SEM 2J - PARA LEC (8 decks)

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