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CLINICAL CHEMISTRY 1 > cc1- LABORATORY L1 > Flashcards

cc1- LABORATORY L1 Flashcards

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1
Q

Used to improve the quality of the sample and accelerate sample processing.

A

ADDITIVES

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2
Q

Order of draw:

A

blood culture (if ordered, will always come first)
yellow
light blue
red (glass)
red (plastic)
SST or gold
green
PST or light green
lavender
pink
gray

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3
Q

Fibrinogen and other clotting factors are present since it is not used up because of the presence of an anticoagulant.

A

PLASMA

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4
Q

AKA serum separator tube

A

GOLD TOP

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5
Q

no anticoagulant but contains silica particles as clot activator.

A

RED TOP (PLASTIC)

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6
Q

no anticoagulant and additive because the glass itself serves as a clot activator.

A

RED TOP (glass)

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7
Q

allows bacteria to grow so that they can be cultured.

A

Sodium Polyanethol Sulfonate (SPS)

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8
Q

separator gel that is present in GOLD TOP
- principle: upon centrifugation, the different specific gravity will
separate the components

A

thrixotropic gel

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9
Q

LIGHT BLUE 2 CONCENTRATIONS:

A

3.2% (0.105M) (preferred) and 3.8% (0.129M)

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10
Q

No anticoagulant but it has a separator gel

A

GOLD TOP

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11
Q

LIGHT BLUE TOP
- means that it binds to
calcium or forms calcium salts to remove calcium.

A

CHELATES CALCIUM

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12
Q

LIGHT BLUE
- Blood to anticoagulant ratio:

A

9:1

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13
Q

Preferred anticoagulant for CC; best for blood gas studies, electrolyte studies

A

HEPARIN

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14
Q

3 FORMS OF HEPARIN:

A

LITHIUM, SODIUM, AMMONIUM

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14
Q

is the anticoagulant naturally found in the body, thus, it has the
least effect on chemistry tests.

A

HEPARIN

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15
Q

AKA plasma separator
tube

A

LIGHT GREEN TOP

16
Q

LAVENDER TOP: concentrations
- K2 EDTA or dipotassium EDTA (recommended because it preserves the cell morphology and provides stable microhematocrit result)

A

PLASTIC (SPRAY-DRIED)

17
Q

LAVENDER TOP: concentrations
- K3 EDTA or tripotassium EDTA (commercial name: sequestrene)

A

GLASS (LIQUID)

18
Q

What is the commercial name of K3 EDTA

A

SEQUESTRENE

19
Q

What is the commercial name of NA2 EDTA or DISODIUM EDTA?

A

VERSENE

20
Q

is the most potent clot activator; used in STAT chemistries because
the optimum clotting time is 5-10 mins.

A

THROMBIN

21
Q

Serum/plasma that contains large amounts of bilirubin

A

ICTERIC SAMPLE

22
Q

Serum/plasma contains large amounts of fats and lipids

A

LIPEMIC SAMPLE

23
Q

3 MAJOR TYPES OF THERMOMETER

A
  1. LIQUID-IN-GLASS
  2. ELECTRONIC THERMOMETER
  3. DIGITAL THERMOMETER
24
Q
  • Most COMMON type for volumetric measurement
A

BOROSILICATE GLASS

25
Q

is calibrated to hold
one exact volume of liquid (TC). The flask has a round, lower portion with flat bottom and a long, thin neck with an

A

VOLUMETRIC FLASK

26
Q

– designed to hold
different volumes rather than one exact amount

A

ERLENMEYEK FLASK

27
Q

is determined in the same manner regardless of whether w/w, v/v, or w/v units are used.

A

PERCENT SOLUTION

28
Q

defined as the number of gram equivalent weights per 1 L of solution.

A

NORMALITY

29
Q

Expressed as the number of moles per 1 L of solution.

A

MOLARITY

30
Q

MODE OF ACTION : OXALATE

A

Oxalate prevents cutting by binding
calcium

31
Q

MODE OF ACTION :SODIUM FLUORIDE

A

Sodium fluoride preserves glucose and inhibits bacterial growth

32
Q

MODE OF ACTION: 3.2 % buffered sodium citrate

A

Prevent coagulation by chelating calcium

33
Q

represents the ratio of concentrated or stock material to the volume or weight of the concentrate plus the volume of
the diluent, with the units remaining the
same.

A

DILUTION

34
Q

MODE OF ACTION: Silicon in RED TOPPED TUBE

A

Promotes Blood Clot

35
Q

MODE OF ACTION: SPS

A

Prevent coagulation by binding calcium

36
Q

MODE OF ACTION: Lithium Heparin

A

It inhibits thrombin formation to prevent clotting

37
Q
A

CLINICAL CHEMISTRY 1 (2 decks)

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