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micro lab 8/29 > 8/27 > Flashcards

8/27 Flashcards

1
Q

Bio safety Levels (BSL)

A

Provides a set of minimum standards for laboratory practices,
facilities, and equipment to be used when handling organisms at
each level

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2
Q

Refraction

A

Bending of light

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3
Q

Resolution

A

Clarity of an image

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4
Q

Resolving Power (Limit of Resolution)

A

Actual measurement of how far apart two points must be for the
microscope to view them as being separate

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5
Q

Trematodes (Flukes)

A

Schistosoma mansoni

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6
Q

Is the causative agent of

schistosomiasis

A

Trematodes (Flukes); Schistosoma mansoni

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7
Q

Found in Brazil, some Caribbean islands, Africa, and

parts of the Middle East

A

Trematodes (Flukes); Schistosoma mansoni

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8
Q 
S
NAILS
serve as
primary
intermediate host between
humans
A

Trematodes (Flukes); Schistosoma mansoni

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9
Q

Infection occurs via contact with fecally contaminated water containing juveniles of the species
»Juveniles penetrate
skin
,

A

Trematodes (Flukes); Schistosoma mansoni

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10
Q 
Signs
and s
ymptoms:
bloody diarrhea, abdominal pain,
fever, and lethargy
A

Trematodes (Flukes); Schistosoma mansoni

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11
Q

Dx. eggs in feces

A

Trematodes (Flukes); Schistosoma mansoni

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12
Q

Clonorchis sinensis

A 
A.k.a.,
oriental liver fluke
(endemic in Japan, Korea,
Vietnam, China, and Taiwan)
-
Is the causative agent of
cl
onorchiasis
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13
Q

Infection occurs when
undercooked infected fish
is
ingested

A

Clonorchis sinensis

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14
Q 
Adults migrate to liver bile ducts and begin laying
eggs
in approximately one month
»
Causes liver disease
A

Clonorchis sinensis

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15
Q

Note:
transmission of parasite from the mammal host
(cats, dogs, swine) to humans

A

Clonorchis sinensis

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16
Q

Signs and symptoms: biliary obstruction and
inflammation (cholangitis), and steatorrhea (presence of
fat in feces due to consumption of bile by parasi
te

A

Clonorchis sinensis

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17
Q 
6
|
P a g e
-
Dx. eggs in feces
, eosinophilia, increased liver fun
ction
tests (LFTs), alkaline phosphatase, γ
-
glutamyl
transpeptidase, and bilirubin
A

Clonorchis sinensis

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18
Q

Cestodes (Tapeworms)

A

a
holdfast with many flattened sacs for a
body

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19
Q

Taenia saginata

A

Beef tapeworm

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20
Q

Scolex

A 
serves
to
secure
tapeworm
into wall
of small intestine
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21
Q

Proglottid

A 
segment of a
tapeworm,
containing both
male and female
reproductive
organs
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22
Q

Signs and symptoms: mild nausea, diarrhea, abdominal

pain, and headache

A

Cestodes (Tapeworms)

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23
Q

Dx. scolex and gravid proglottids in feces

A

Cestodes (Tapeworms); Taenia solium

24
Q

Taenia solium

A

Pork tapeworm

25
Q

Signs and symptoms are more mild than T. saginata
but
are at risk of developing
cysticercosis

A

Taenia solium

26
Q

Dipylidium

caninum

A

a common parasite of dogs and cats involving the flea

as intermediate host

27
Q

Echinococcus granulosus

A

causative

agent of human hydatidosis

28
Q

Hymenolepis nana

A

most

common cestode in humans in the world

29
Q

Nematodes (Roundworms

)

A

Ascaris lumbricoides

30
Q

Is the causative agent of

ascariasis

A

Ascaris lumbricoides

31
Q 
Infection in humans occur when
eggs
in fecally
contaminated soil or food
are
ingested
A

Ascaris lumbricoides

32
Q 
J
uveniles emerge in intestine
,
penet
rate
its
wall,
and
migrate to
lungs and other tissues
»
After a period of development in lungs, juveniles
move up the respiratory tree to esophagus and are
swallowed again
A

Ascaris lumbricoides

33
Q

Dx. eggs in feces

A

Ascaris lumbricoides

34
Q

Enterobius vermiculari

A

Pinworm

35
Q

Is the causative agent of
enter
o
biasis

A

Enterobius vermiculari

36
Q

Especially prevalent among people in institutions (such
as orphanages and mental hospitals) because conditions
favor
fecal
-
oral transmission
of parasite

A

Enterobius vermiculari

37
Q

Dx. eggs collected on cellophane (scotch) tap

A

Enterobius vermiculari

38
Q

Necator americanus

A

A.k.a., Hookworm

39
Q 
Infection occurs when
juveniles penetrate skin
, enter
blood and travel
to lungs
A

Necator americanus

40
Q

Dx. eggs in feces

A

Necator americanus

41
Q

Rx. albendazole

A

Necator americanus

42
Q

Trichonella spiralis

A

Is the c
ausative agent of
trichinosis

43
Q

Infection occurs from ingestion of raw or undercooked

pork and wild game having the larvae

A

Trichonella spiralis

44
Q

S
igns and symptoms: nausea, dyspepsia, diarrhea,
muscle pain
, fever, weakness; periorbital edema and splinter hemorrhage are
classic signs

A

Trichonella spiralis

45
Q

Dx. larvae in feces
, eosinophilia, increased levels of
creatine phosphokinase (CPK)

A

Trichonella spiralis

46
Q

Rx. albendazole

A

Trichonella spiralis

47
Q

Strongyloides stercoralis

A

intestinal

threadworm

48
Q

Wuchereria bancrofti

A

filarial worm

49
Q

Trichuris

trichiura

A

intestinal whipworm

50
Q

Rx. praziquante

A

Taenia saginata; Taenia solium

51
Q

Rx. Praziquantel

A

Clonorchis sinensis; Schistosoma mansoni

52
Q

Trematodes aka?

A

flukes

53
Q

Cestodes aka?

A

Tapeworms

54
Q

Nematodes aka?

A

Roundworms

54
Q

Cyst

A

Dormant stage, usually spherical

55
Q

Trophozoites

A

Active stage, motile feeding stage

56
Q

Protozoan a are unicellular eukaryotic heterotrophic microorganisms

A

True

micro lab 8/29 (1 decks)

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