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Parasitology > Filaria/Tissue roundworms > Flashcards

Filaria/Tissue roundworms Flashcards

0
Q

It blocks lymphatics and affects lower extremities

A

Wunchereria bancrofti

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1
Q

Infective stage of Filarial Nematode

A

L3 larvae

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2
Q

Associated with decrease of vitamin A

A

Onchocerca volvulus

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3
Q

Most common filaria in the Philippines

A

Brugia malayi

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4
Q

Causes Elephantiasis

A

Wunchereria bancrofti

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5
Q

Most common filarial nematode

A

Wunchereria bancrofti

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6
Q

Its microfilariae is not found in the circulating blood

A

Onchocerca volvulus

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7
Q

It causes fugitive swelling

A

Loa loa

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8
Q

Give the filarial nematodes that has unsheathed microfilaria

A

Onchocerca volvulus
Mansonella perstans
Mansonella ozzardi

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9
Q

Give the filarial nematodes that has sheathed microfilaria

A

Wunchereria bancrofti
Brugia malayi
Loa loa (Eyeworm)

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10
Q

Best time to collect blood sample for Loa loa

A

Around noon (also seen in spinal fluid, urine, sputum in its noncirculating phase; blood AM)

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11
Q

Causes Tropical pulmonary eosinophilia (Weingarten Syndrome)

A

Brugia malayi

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12
Q

Associated with nodulectomy

A

Onchocerca volvulus

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13
Q

Its head spot has a v-shaped appearance

A

Mansonella perstans

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14
Q

Diagnostic test for Onchocerca volvulus

A

Skin snips

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15
Q

Causes Pruritis

A

Mansonella perstans

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16
Q

Other term for Tropical Pulmonary Eosinophilia

A

Weingarten’s Syndrome (caused by Brugia malayi)

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17
Q

Its microfilaria has a swelling tip

A

Brugia malayi

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18
Q

Where do Mansonell perstans located?

A

Body cavity (peritoneL, pleural and pericardium)

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19
Q

Causes Malayan Filariasis/Lymphatic Filariasis

A

Brugia malayi

20
Q

Calabar swelling is caused by?

A

Loa loa (also known as fugitive swelling)

21
Q

Disease caused by Onchocerca volvulus

A

Onchocerciasis/River Blindness

22
Q

Enumerate the non-periodic filarial nematode

A

Onchocerca volvulus
Mansonella perstans
Mansonella ozzardi

23
Q

Enumerate the nocturnal filarial nematodes

A

Wunchereria bancrofti

Brugia malayi

24
Give the diurnal filarial nematodes
Loa loa/Eyeworm
25
Mode of transmission of Filarial nematodes
Vectors
26
Transmitted by Deerfly
Loa loa/Eyeworm
27
Transmitted by Blackfly (genus Simulium)
Onchocerca volvulus | Mansonella ozzardi
28
Transmitted by Midges/gnats (genus Culicoides)
Mansonella perstans | Mansonella ozzardi
29
Exclusive to western hemisphere
Mansonell ozzardi
30
Other name for Mansonella perstans
Persistent Filaria
31
Also known as the New World Filaria
Mansonella ozzardi
32
Seen in spinal fluid,urine, sputum in its noncirculating phase
Loa-loa (Eyeworm)
33
Loa loa commonly reside in?
Subcutaneous tissue in the conjunctiva
34
Found in the nodules of subcutaneous tissue and skin
Onchocerca volvulus
35
Time of collection for nocturnal filarial nematode
10:00PM-2:00AM
36
Its microfilaria is found in the skin and subcutaneous tissue and not in the blood
Onchocerca volvulus
37
Adult worm is commonly found where?
Lymphatics Subcutaneous tissue Internal body cavities
38
Its microfilaria has a pointed tail
Wunchereria bancrofti
39
Differentiate the microfilaria of the different filarial nematodes
Wunchereria bancrofti - pointed tail Brugia malayi - swelling tip Loa loa/Eyeworm - rounded tail Onchocerca volvulus - pointed tail Mansonella perstans - broad and blunt tail Mansonella ozzardi - thin and pointed tail
40
It os designed to allow the recovery of microfilaria from a blood specimen
Knott concentration technique
41
How many % of dilute formalin is used in knott concentration technique?
2%
42
How many infective larvae is required to initiate infection?
1-4
43
Treatment for filarial nematode and how many mg for each drug
Albendazole(400mg) + Ivermectin (150-200 meg/kg) | Albendazole (400mg) + Diethycarbamazine citrate (6mg/kg)
44
Treatment for Mansonella ozzardi
Ivermectin *DEC/Diethycarbamazine citrate is not effective
45
Filarial nematode commonly treated with DEC
Wunchereria ban rofti Brugia malayi Loa loa/Eyeworm Mansonella perstans
46
Filarial nematode commonly treated with Ivermectin
Onchocerca volvulus | Mansonella ozzardi
47
This filaria elicits strong eosinophilia
Loa-loa/Eyeworm
48
Disease caused by Mansonella perstans
Pruritis Athralgias; adenopathy; hepatomegaly

Parasitology (8 decks)

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