Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Parasitology lec > Enterobius vermicularis > Flashcards

Enterobius vermicularis Flashcards

1
Q

Common Name

A
  • Seatworm
  • Pinworm
  • Society worm
  • “Tiwa”
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Other Name

A

Oxyuris Vermicularis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Final Host

A

Humans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Infective Stage

A

Embryonated Egg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Habitat

A

Large Intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Epidemiology

A

Considered as most common nematode
infection in the world

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Shape

A

Spindle-shaped

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Tails

A

Males have curve tails; have a spicule Females have pointed tails

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Notable Parts

A

It has cephalic alae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

a wing-like structure

A

cephalic alae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

on its anterior portion that is used during migration

A

cephalic alae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Shape of Eggs

A

D shaped / lopsided / football shaped
(flattened one side)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Egg Production

A

Approx. 11,000 eggs per day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Eggs Structure

A

It has 2 layers:
- Outer albuminous
layer
- Inner lipodial layer

Inside is a tadpole looking larva

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Embryonation

A

After 4-6 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

MOT

A

Oral, Air-borne, Retroinfection,
Autoinfection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Enterobius vermicularis : Life Cycle

There are different ways we get the infection but primarily, main mode of transmission is ____________

A

Ingestion of eggs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Enterobius vermicularis : Life Cycle

After ingesting, it would hatch and release larva in the _________ and they will find its way to the ______ and become adults.

A
  • small intestine
  • large intestine
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Enterobius vermicularis : Life Cycle

The gravid female would travel from large intestine to the _________ to lay eggs

A

perianal area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Enterobius vermicularis : Life Cycle

The female migrates during the _____ to lay eggs

A

night

21
Q

v

They will ___ after laying eggss

A

die

22
Q

Enterobius vermicularis : Life Cycle

Within _____ hours in the perianal area, they will already be embryonated and mature

A

4 to 6

23
Q

Enterobius vermicularis : Life Cycle

Within the eggs are the tadpole-like larvae and are considered as _____

A

L1 larva

24
Q

Enterobius vermicularis : Life Cycle

Eggs can be found in the _______ where
the child is sleeping

A

bed sheets

25
Q

Enterobius vermicularis : Life Cycle

There is also a possibility of ________ when cleaning the bed of an infected person if the eggs are suspended in the air.

A

inhalation

26
Q

Enterobius vermicularis : Life Cycle

_______ is another mode of infection in which case the larva hatched in the perianal area and will go back into the anus and be infected again by the parasite.

A

Retrofection

27
Q

Enterobius vermicularis: Pathology

Disease caused

A

Enterobius vermicularis: Pathology

28
Q

Enterobius vermicularis : Life Cycle

In autoinfection, one symptoms is _____________ which causes the infected to scratch their butt and eggs can be found between the nails infecting themselves or other.

A

nocturnal pruritus ani

29
Q

Enterobius vermicularis: Pathology

Patients experience:

A

Nocturnal Pruritus Ani
○ Insomnia
○ Secondary Bacterial infection
○ Loss of Appetite,
○ Abdominal Pain
○ Vulvovaginitis
○ Appendicitis.
○ Ectopic deposition of the eggs

30
Q

Enterobius vermicularis: Pathology

(eggs can be found in the vagina and cause inflammation)

A

Vulvovaginitis

31
Q

Enterobius vermicularis: Pathology

In some rare cases, the eggs can be deposited not in the perianal area but in the ______ or _____

A

lungs or liver

32
Q

Enterobius vermicularis: Pathology

If one is infected in the family, best course of treatment is to treat __________ in the Family

A

everyone

33
Q

Enterobius vermicularis: Treatment

First drug of choice

A

Mebendazole

34
Q

Second drug of choice

A
  • Albendazole
  • Pyrantel Pamoate
35
Q

Enterobius vermicularis: Diagnosis

__________ is not recommended due to low recovery rate (only about 5%)

A

Stool examination

36
Q

Commonly used:

A

Scotch tape Swab/Cellophane
Anal Swab/NIH Swab

37
Q

Other method of collection:

A
  • Swellengrebel
  • Graham’s technique
  • Petrolatum
38
Q

Collection should be done early in the morning before ______ and ________

A

defecating and taking a bath

39
Q

Collect the specimen wearing ____

A

PPE

40
Q

Use of scotch tape or cellulose acetate with
a tongue depressor or slide

A

Scotch tape swab

41
Q

Use of scotch tape with a tongue depressor

A

Graham’s technique

42
Q

Use of moisten pestle. Pestle is slowly rolled on the perianal area, and the eggs will adhere to the moisten pestle

A

Swellengrebel technique

43
Q

Use of a glass-rod; wherein on top has a cellophane paper (clear-type)

A

NIH swab

44
Q

The _______ is applied to the perianal area - rolled on the area to collect the eggs and examine under the microscope.

NIH swab

A

cellophane part

45
Q

You can put it on a test tube.

A

NIH swab

46
Q

Based on the guidelines, at least __ negative (-) NIH swabs should be done before reporting it as negative

A

7

47
Q

Enterobius vermicularis : Epidemiology

More common among
females(Locally)

A

Cosmopolitan

48
Q

Cannot be controlled by _____________

A

sanitary disposal of waste

Parasitology lec (24 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions