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RECALLS - MEDTECH 2021 > Clinical Microscopy > Flashcards

Clinical Microscopy Flashcards

1
Q

volume required for YELLOW IRIS instrument

A

2 mL

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2
Q

principle used by automated strip readers

A

Reflectance photometry/colorimetry?

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3
Q

device used for Centrifuge calibration

A

Tachometer
stopwatch
Strobe light

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4
Q

calibration of centrifuge is done every ____

A

3 months

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5
Q

disinfection of centrifuge is performed

A

weekly

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6
Q

refers to time from ordering a test through analysis in the lab to the charting of report

A

Turnaround time

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7
Q

PDMAI stands for

A 
Plan
Design
Measure
Assess
Improve
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8
Q

what to do with a received body fluid collected in a SYRINGE which is > 1 hour from collection and with a volume > 1mL

A

reject

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9
Q

small body fluid specimens (few drops) in a SYRINGE received > 10 mins after collection

A

Reject

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10
Q

normal stool pH

A

7.0 to 8.0

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11
Q

pancreatic enzyme that breaks down gelatin

A

Trypsin

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12
Q

yellow-brown supernatant in APT test

A

maternal blood

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13
Q

pink solution in the APT test indicates presence of

A

Fetal blood

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14
Q

reagent used in APT test

A

1% sodium hydroxide

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15
Q

vitamin contraindicated in FOBT

A

Vitamin C

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16
Q

why is Guiac reagent preferred in FOBT?

A

Less sensitive (avoid false neg)

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17
Q

positive guiac test

A

Blue color

18
Q

FOBT is for screening

A

Colorectal cancer

19
Q

reagents used in Neutral fat stain

A

95% ethanol & Sudan III

20
Q

reagents used in Split fat stain

A

36% acetic acid & Sudan III

21
Q

Excessive fat excretion in stool

A

Steatorrhea

22
Q

seen in patient with allergic reactions

A

Charcot-Leyden crystal

23
Q

how many neutrophils are indicative of an invasive diarrhea

A

3 neutrophils per HPF

24
Q

Lactoferrin latex agglutination is used to detect____

A

Fecal leukocytes

25
Q

undigested muscle fibers in the feces appear

A

has 2 dimensional striations

26
Q

specimen for quantitative fecal fat determination

A

3 day (72 hour) stool

27
Q

Scybalous (goat droppings)

A

Constipation

28
Q

Pea soup

A

typhoid

29
Q

rice watery

A

cholera

30
Q

ribbon-like

A

intestinal constriction

31
Q

mucus, blood-streaked mucus

A

colitis
dysentery
malignancy
constipation

32
Q

butter-like

A

cystic fibrosis (inc. mucus)

33
Q

bulky/frothy

A

pancreatic disorders
bile duct obstruction
steatorrhea

34
Q

violet/purple

A

porphyria

35
Q

grape soda

A

blue

36
Q

barium sulfate

A

gray stool

37
Q

pale yellow, white, gray

A

bile duct obstruction

38
Q

hematochezia, beets, food coloring rifampin

A

red stool

39
Q

melena, ferrous sulfate, carcoal,

A

black stool

40
Q

bismuth

A

black stool

41
Q

brown color of stool is due to

A

urobilin/stercobilin pigments

RECALLS - MEDTECH 2021 (11 decks)

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