RLG Flashcards

1
Q

The most widely employed
technique for the detection of
parasites in the gastrointestinal
tract.

A

fecalysis

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2
Q

fecal score: majority is formed but has poor consistency and viscous

A

G4

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3
Q

fecal score: moist, leaves definite mark

A

G3

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4
Q

fecal score: bullet like, crumbly

A

G1

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5
Q

fecal score: does not hold form, and spreads lightly

A

1/3 -soft

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6
Q

Factors that may affect fecal examination

A
  1. Amount of feces examined
  2. Age of the sample
  3. Sample handling (including
    collection, storage, and transport)
  4. Examination method
  5. Skill of the diagnostician
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7
Q

If the fecal material cannot be
examined immediately, preserve it in:

A

5-10% formalin
refrigerate 3-5C

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8
Q

qualitative fecal exa methods

A
  • Direct/ simple smear
  • Flotation
  • Sedimentation
  • Larval recovery
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9
Q

quantitative fecal exam methods

A
  • Stoll-ova counting technique
  • McMaster egg-counting
    technique
  • Beaver’s direct egg-counting
    technique
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10
Q

Useful also for pseudotapeworms,
acanthocephalan eggs, lungworm
and Strongyloides larva, amoeba,
and ciliates.

A

sedimentation

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11
Q

Useful for isolation and
identification of ovoviviparus
nematodes and strongyles.

A

larval recovery

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12
Q

types of fecal flotation

A

passive and centrifugation
flotation

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13
Q

quantitative methods can reflect parasite burden and degree of infection

A

F

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14
Q

used for dx of abomasal or stomach damage due to trichostrongyles

A

plasma pepsinogen test

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15
Q

vector borne pathogens of cattle

A

babesia
theileria
elaeophora
setaria
trypanosoma
anaplasma

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16
Q

Techniques for the detection of vector-borne
pathogens

A
  • Blood smear examination
  • Serological assays
  • Molecular assays
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17
Q

thin smears are more
concentrated and offer higher
sensitivity than thick smear,

A

false

18
Q

is more useful when looking
for Babesia.

A

capillary blood sample

19
Q

where to get capillary blood sample

A

ear tip

20
Q

more preferred staining for examination of
protozoan parasites and rickettsiae.

A

Romanowsky stains, such as
Wright stain and Giemsa stain,

21
Q

stain used in knott’s conc method

A

methylene blue

22
Q

Highly motile, swimming
through the blood, No sheath; Body curved
with hooked posterior end

A

Acanthocheilonema spp.

23
Q

Motile but stays in place, no sheath, body curved along whole length

A

d. immitis

24
Q

Sheathed; Tail is tapered
and with cephalic space.

A

brugia spp.

25
Q

PCR phases

A

Denaturation annealing extension

26
Q

PCR is repeated for ___ cycles

A

30-35

27
Q

is critical for thesuccess of PCR.

A

Primer design

28
Q

Determines the specificity of
PCR.

A

primer

29
Q

Normally, primers are composed
of __ bp.

A

18-30

30
Q

Amplification proceeds through repetition
of two types of elongation reactions that
occur via the ____

A

loop regions

31
Q

LAMP utilizes ___ primers

A

4-6

32
Q

Compared to PCR, it is simpler, more
rapid, and less sophisticated.

A

LAMP

33
Q

meaning of LAMP

A

loop-mediated isothermal amplification

34
Q

meaning of CFI

A

color fluorescent indicator

35
Q

combi dyes of CFI

A

hydroxynaphthol blue
gel green

36
Q

LAMP Color change is visible by the
naked eye.

A

true

37
Q

LAMP fluorescence is confirmed in real time by
through the machine (___).

A

FAM
filter

38
Q

Low sensitivity in low level of
infection
* Identification to species level is
often challenging

A

microscopic exam

39
Q
  • High sensitivity and
    specificity
  • Multiplex PCR can detect
    coinfection in a single run
A

molecular technique

40
Q

Readily accessible
* Can identify presence of
coinfection

A

microscopic exam

41
Q
  • Not readily available
  • Expensive
  • PCR may take hours
  • False negative cases
A

molecular exam

42
Q
A