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Botany > Para Lec - A. lumbricoides & T. trichiura > Flashcards

Para Lec - A. lumbricoides & T. trichiura Flashcards

1
Q

hookworms attach on small intestines via

A

pith

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2
Q

common name of Ascaris lumbricoides

A

giant intestinal roundworm

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3
Q

final host of Ascaris lumbricoides

A

man

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4
Q

habitat of Ascaris lumbricoides

A

small intestine

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5
Q

diagnostic stage of Ascaris lumbricoides

A

ova (fertilized or unfertilized)

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6
Q

infective stage of Ascaris lumbricoides

A

EMBRYONATED egg

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7
Q

sources of infection of Ascaris lumbricoides

A

STH

soil with contaminated feces

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8
Q

MoT of Ascaris lumbricoides

A

Ingestion

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9
Q

Portal of entry of Ascaris lumbricoides

A

mouth

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10
Q

Portal of exit of Ascaris lumbricoides

A

anus

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11
Q

egg with a larva waiting to be hatched

A

embryonated egg

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12
Q

embryonated egg of A. lumbricoides may remain viable for

A

3 months

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13
Q

neglected tropical disease, problem of underdeveloped countries

A

Ascariasis

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14
Q

how much of the world’s population is infected with Ascariasis?

A

1/8th of the world’s population

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15
Q

largest intestinal nematodes infecting humans

A

Ascaris lumbricoides

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16
Q

obligatory extraintestinal migration of Ascaris lumbricoides causes

A

eosinophilia

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17
Q

lifespan of Ascaris lumbricoides

A

1-2 years

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18
Q

intensity of infection of Ascaris lumbricoides greatest in what age group

A

children 5-10 years old

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19
Q

which helminth requires heart and lung migration to be fully developed

A

Ascaris lumbricoides

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20
Q

Eggs of Ascaris lumbricoides can survive the acidity of small intestine. T or F

A

T

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21
Q

Where does Ascaris lumbricoides release its larva

A

small intestine

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22
Q

where do adult worms of Ascaris lumbricoides live

A

small intestine

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23
Q

number of eggs that a female Ascaris lumbricoides produce per day

A

200 000 eggs/day

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24
Q

how many months required from ingestion of infective eggs of Ascaris lumbricoides to oviposition by the adult F

A

2-3

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25
Q

Where does maturation of worm of Ascaris lumbricoides take place

A

S.I.

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26
Q

Where does the female Ascaris lumbricoides become fertilized

A

S.I.

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27
Q

color of adult worms of Ascaris lumbricoides

A

creamy white to pinkish yellow

28
Q

describe head of adult worm of Ascaris lumbricoides (2)

A

trilobate/triradiate lips

small triangular buccal cavity

29
Q

female or male adult worm of Ascaris lumbricoides

tapered at both ends and large (20-35, up to 45 cm)

A

female

30
Q

female or male adult worm of Ascaris lumbricoides
smaller and slender
curve posteriorly
equipped with copulatory spicule

A

male

31
Q

what stage of the Ascaris lumbricoides penetrates the intestinal villi

A

larval stage

32
Q

what stage of the Ascaris lumbricoides invades the lungs

A

larval stage

33
Q

what stage of the Ascaris lumbricoides is swalloed from the throat

A

larval stage

34
Q

type of egg in unicellular stage

A

fertilzed egg

35
Q

egg with developed alrva

found in the environment

A

embryonated ehh

36
Q

geographic prevalence of a. lumbricoides

A

highest in warm, wet climates

37
Q

types of soil preferred by Ascaris lumbricoides

A

loamy, soft soil, shady

38
Q

pre-patency of Ascaris lumbricoides

A

2 months

39
Q

pathology due to larva of Ascaris lumbricoides may cause ___ (2)

A

pneumonitis/Loeffler’s disease

eosiniphilia

40
Q

in migration stage of of Ascaris lumbricoides, this condition is common

A

eosinophilia

41
Q

what occurs when an antihelminthic drug is given when the patient has fever

A

erraticity

42
Q

these remnants may also be seen in of Ascaris lumbricoides infection [related to eosinophilia]

A

Charcot-Leyden crystals

43
Q

adult phase of ascaris causes [3]

A

malnutrition
impaired physical growth
mild abdominal discomfort

44
Q

condition caused by adult ascaris

small bowel obstruction (in children, few as 60 worms?)

A

mild abdominal discomfort

45
Q

infection of gall bladder

A

cholangitis

46
Q

manifestations of wandering ascaris (in severe infections) [4]

A

biliary tract infections
pancreatitis
cholangitis
liver abscess

47
Q

2 types of treatment for ascaris

A

selective and mass

48
Q

more effective treatment for ascaris

A

mass

49
Q

drug of choice for treatment for ascaris

A

albendazole x 1 dose

50
Q

mass of ascaris worms in intestines that cause GIT perforations

A

worm bolus

51
Q

diagnosis of ascaris (types of stool exams) (4)

A

DFS
Kato
Kato Katz
Brine Flotation Technique

52
Q

Diagnosis of ascaris

more sensitive than dfs

A

Kato katz/Kato

53
Q

Diagnosis of ascaris

for determining the intensity of infection

A

kato katz technique

54
Q

Diagnosis of ascaris

uses a hypertonic solution

A

Brine Flotation Technique

55
Q

Diagnosis of ascaris

has a tendency to damage cells

A

Brine Flotation Technique

56
Q

ratio for glycerol solution

A

1 part water
1 part glycerol
1:1

57
Q

materials in kato katz technique

A 
50% glycerol-malachite green solution
wire mesh (60 - 105 mesh)
58
Q

materials in kato katz technique

removes fecal debris

A

wire mesh

59
Q

use of malachite green

A

provide contrast

60
Q

other conc techniques aside from brine flotation

A

zinc sulfate conc. technique
MIFCT
FECT

61
Q

root cause of A. lumbricoides

A

poverty

62
Q

layers present in corticated fertilized egg

A

mamillary coat
glycogen layer
vitelline layer

63
Q

layers present in decorticated fertilized egg

A

glycogen layer

vitelline layer

64
Q

layers present in corticated unfertilized egg

A

mamillary coat

glycogen layer

65
Q

layers present in decorticated unfertilized egg

A

glycogen layer

65
Q

When will pneumonitis manifest in ascaris

A

4-16 days after infection

66
Q

Number of worms involved in mild abdominal discomfort

A

60 worms

Botany (324 decks)

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