Blood and tissue nematodes Flashcards by Mikha Lim

Q

W. bancrofti common name

A

Brancroft’s filarial worm

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Q

B. Malayi common name

A

Malayan filarial worm

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Q

Loa loa common names

A

Eye worm, loa worm

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Q

O. Volvulus common names

A

Convoluted filaria, blinding filaria

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Q

Vector of malayi

A

Mansonia spp

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Q

Vector of bancrofti

A

Aedes, culex, anopheles

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Q

Vector of loa loa

A

Deerfly

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Q

Vector of volvulus

A

Blackfly

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Q

Diagnostic stage of filarial worms

A

Microfilaria

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Q

Infective stage to vector/IH

A

Microfilaria

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Q

Infective stage to man

A

Filariform larva/ L3

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Q

IH of filarial worms

A

Mosquito

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Q

MOT of filarial worms

A

Mosquito bite

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Q

Lifecycle of filarial worms

A

Complex

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Q

Upper elephantiasis

A

Bancrofti

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Q

Scrotal enlargement

A

Bancrofti

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Q

Lower elephantiasis

A

Malayi

Q

Calabar swelling

A

Loa loa

Q

Clin feature of volvulus

A

Subcutaneous nodules

Q

Tropical pulmonary eosinophilia

A

Brancrofti

Q

Lab Diagnosis of malayi

A

Thick blood smear

Q

Lab diagnosis of bancrofti

A

Thick blood smear

Q

DOC of filarial worms

A

DEC

Q

Diagnosis of loa loa

A

Worms in conjunctiva

Q

Diagnosis of volvulus

A

Microfilariae in skin snips

Q

Habitat of bancrofti

A

Lymphatics

Q

Habitat of malayi

A

Lymphatics

Q

Habitat of loa loa

A

Subcutaneous tissue

Q

Habitat of volvulus

A

Subcu tissue

Q

Irregular curves, corkscrew appearance

A

Loa loa

Q

The only unsheathed filarial worm

A

Volvulus

Q

Graceful, doesn’t extend to tip

A

Bancrofti

Q

Kinky, extends to tip

A

Malayi

Q

T/F: Loa loa’s terminal nuclei extends to tip

A

T

Q

Stained

A

Malayi

Q

Unstained

A

Bancrofti

Q

Bancrofti periodicity

A

Nocturnal 10pm-2am

Q

Malayi periodicity

A

Subperiodic 12nn -8pm

Q

Loa loa periodicity

A

Diurnal 12nn

Q

Volvulus periodicity

A

Non periodic; anytime