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MLS > Nematodes > Flashcards

Nematodes Flashcards

1
Q

Enterobius Vermicularis common name

A

pin worm

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2
Q

trichuris trichiura common name

A

whipworms

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3
Q

strongyloides stercoralis common name

A

threadworms

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4
Q

dracunculus medinensis common name

A

guinea worm

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5
Q

Where is enterobius vermicularis commonly found

A

daycare or pediatric areas

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6
Q

enterobius vermicularis dx phase

A

eggs on perianal folds

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7
Q

enterobius vermicularis infective phase

A

embryonated cells ingested

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8
Q

enterobius vermicularis size

A

invisible to naked eye

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9
Q

where do adult enterobius vermicularis live in the body?

A

lumen of the cecum

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10
Q

ascaris lumbricoides dx phase

A

3, fertilized/unfertilized egg from feces, adults in small intestine, or larvae in spit

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11
Q

ascaris lumbricoides infective stage

A

ingestion of eggs usually from water

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12
Q

where is ascaris lumbricoides common?

A

the global south

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13
Q

ascaris lumbricoides eggs are

A

cordicated or deocordicated

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14
Q

where can ascaris lumbricoides travel to in the human body

A

lungs

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15
Q

trichuris trichiura dx phase

A

feces

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16
Q

trichuris trichiura eggs are

A

highland plugs on either end

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17
Q

trichuris trichiura infective phase

A

ingestion of eggs

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18
Q

where does trichuris trichiura live in the human body

A

cecum

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19
Q

strongyloides stercoralis dx phase

A

feces or blood

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20
Q

strongyloides stercoralis infective phase

A

penetrate skin and travel to mucisa of small intenstine

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21
Q

strongyloides stercoralis can often be confused with _____ but has a ____ buccal cavity and is ____ severe

A

hookworms, shorter, more

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22
Q

causes hyperinfection

A

strongyloides stercoralis

22
Q

toxocara spp dx phase

A

consumption of eggs

23
Q

toxocara spp infective phase

A

bx or observation

24
Q

toxocara spp definitive host is

A

cats and dogs

25
Q

toxocara spp eggs are

A

not produced in humans

26
Q

symptoms of toxocara spp.

A

ocular migrans and cutaneous larva migrans

27
Q

wuchereria bancrofti dx phase

A

sheathed with no nuclei in blood/lymph

28
Q

wuchereria bancrofti infective phase

A

larvae enter skin and moves to lymphatic system

29
Q

wuchereria bancrofti vector

A

mosquito

30
Q

loa loa vector

A

chrysops fly

31
Q

loa loa dx phase

A

sheath and nuclei at tip of tail in CSF, urine, sputum, or peripheral blood

32
Q

loa loa infective phase

A

larvae

33
Q

common time to find microfilariae from loa loa to be seen on blood smears

A

10 am to 2 pm

34
Q

onchocerca volvulus causes

A

river blindness

35
Q

onchocerca volvulus dx phase

A

no sheath, no nuclei in skin and lymph of connective tissue

36
Q

onchocerca volvulus infective phase

A

larvae from fly bite

37
Q

onchocerca volvulus vector

A

simulium/ african black fly

38
Q

calabar swelling

A

onchocerca volvulus

39
Q

dracunculus medinensis infective phase

A

ingesting fleas w/ larvae

40
Q

dracunculus medinensis diagnostic phase

A

worms emerging from blister

41
Q

dracunculus medinensis vector

A

water flea

42
Q

worm burst through foot and infects water, increasing infection

A

dracunculus medinensis

43
Q

trichinella spiralis dx

A

encysted larvae in muscle (bx)

44
Q

trichinella spiralis infective phase

A

larvae from ingestion of undercooked meat

45
Q

symptoms of trichinella spiralis

A

edema around eyes, Hf, splintered nails

46
Q

necator americanus AKA

A

new world hookworm

47
Q

necator americanus dx phase

A

eggs in feces

48
Q

necator americanus infective phase

A

filariform larvae penetrating skin

49
Q

ancylostoma duodenale AKA

A

old worm hookworm

49
Q

ancylostoma duodenale dx phase

A

eggs in feces

50
Q

ancylostoma duodenale infective phase

A

filariform larvae penetrates skin

51
Q

symptoms of hookworms

A

anemia/severe blood loss

52
Q

necator americanus/ ancylostoma duodenale treatment is

A

identical

MLS (7 decks)

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