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MICRO Exam 7 > Guinea Worms Filarial Roundworms > Flashcards

Guinea Worms Filarial Roundworms Flashcards

1
Q

Dracunculus Medinensis

A 
Guniea Worm
Dranculiasis
LARGE NEMATODE
Larvae ovoviviparous
Larvae in bath water, expelled by female worms
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2
Q

Life Cycle Dracunculus

A

female emerges
1st stage larvae eaten by copepod
Definitive host: inadvertently consumes copepod
Infective: 3rd stage larva

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3
Q

Pathophysiology Dracunculus Medinensis

A

1 yr after, worm emerges

Sub q and skin of lower extermities

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4
Q

Epidemiology Dracunculus Medinensis

A

Endemic to areas of Africa

Ponds in desert environment

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5
Q

Diagnosis Dracunculus Medinensis

A

No relieable method
Metronidazole
Surgical removal
winding around a stick

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6
Q

Wuchereria Bancrofti

A 
Bancroft Filarial Worm
Wuchereriasis
Bancroft Filariasis
ELEPHANTITIS
MICROSCOPIC
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7
Q

Wuchereria Bancrofti Life Cycle

A

Fliariform Larva, infective stage,Mosquito feeds on the person, enters the woung via mosquito wound site, Migrates to lymphatics

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8
Q

Wuchereria Bancrofti Pathophysiology

A

Inflammatory response
fever-> lymphagenitis-> Lymph Stagnation -> Elephantoid
Enlargement when channels occluded

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9
Q

Wuchereria Bancrofti Epidemiology

A

Africa, Asia Haiti Brazil
Vectors- Night Feeding Mosquitos
P blood max 10PM -2AM

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10
Q

Wuchereria Bancrofti Diagnostic

A

Microfilairia in blood
Serological card tests
PCR fairly reliable

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11
Q

Wuchereria Bancrofti Treatment

A

DOC
Diethylcarbamazine
Ivermectin

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12
Q

Brugia Malayi

A

Malayan Worm

Malayan Filiariasis

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13
Q

Brugia Malayi Epidemiology

A

Asia South pacific islands

Mosquitos are vectors

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14
Q

Onchocerca Volvulus

A

Onchocerciasis or RIVER blindness
Life Cycle: Infective Stage: Filiariform
Reside in SUBQ for 15 yrs
Microfilaria ingest by black fly in blood meal

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15
Q

Onchocerca Volvulus Pathophysiology

A 
No pain in nodule
Elephantiasis normal skin architecture diminishes
Eye Involvement
-Visual
-Microfiliariae
-Sclerosing Keratitis
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16
Q

Onchocerca VolvulusEpidemiology

A

Africa and Ecuador Africa, Yemen, Latin Amer Endemic

Black flies vector: come from river

17
Q

Onchocerca Volvulus Diagnosis

A

Surgical removal of node

18
Q

Onchocerca Volvulus Treatment

A

Ivermectin

19
Q

Loa Loa

A

Eye Worm

20
Q

Loa LoaLife Cycle

A

Filariform Larve

Subq tissue and eye

21
Q

Loa Loa Pathogenicity

A

Sub q of chest penis groin scalp

provoke inflammatory

22
Q

Loa Loa Epidemiology

A

Endemic Africa
Intermediate Host are Deer Flies
Definitive Host is Human
No Animal Reservoirs

23
Q

Loa Loa Therapy

A

DiethylCarbamezapine

Deer fly removal

24
Q

Dirofilaria Immitis

A

Dog heartworm
Infective:Filariform
right heart and pulm artery location

25
Q

Dirofilaria Immitis Pathophysiology

A

Sub q lungs heart

Coin LESION

26
Q

Dirofilaria Immitis Epidemiology

A

Most prevalent eastern and southern USA
Dog and coyote
Mosquito intermediate
Human is unnatural

27
Q

Dirofilaria Immitis Dx and Tx

A

Coin lesion tumor in lung

Surgical removal

MICRO Exam 7 (14 decks)

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