cc1- LABORATORY L1

Question 1

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

Answer 1

ADDITIVES

Question 2

Order of draw:

Answer 2

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

Question 3

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

Answer 3

PLASMA

Question 4

AKA serum separator tube

Answer 4

GOLD TOP

Question 5

no anticoagulant but contains silica particles as clot activator.

Answer 5

RED TOP (PLASTIC)

Question 6

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

Answer 6

RED TOP (glass)

Question 7

allows bacteria to grow so that they can be cultured.

Answer 7

Sodium Polyanethol Sulfonate (SPS)

Question 8

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

Answer 8

thrixotropic gel

Question 9

LIGHT BLUE 2 CONCENTRATIONS:

Answer 9

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

Question 10

No anticoagulant but it has a separator gel

Answer 10

GOLD TOP

Question 11

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

Answer 11

CHELATES CALCIUM

Question 12

LIGHT BLUE
- Blood to anticoagulant ratio:

Answer 12

9:1

Question 13

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

Answer 13

HEPARIN

Question 14

3 FORMS OF HEPARIN:

Answer 14

LITHIUM, SODIUM, AMMONIUM

Question 14

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

Answer 14

HEPARIN

Question 15

AKA plasma separator
tube

Answer 15

LIGHT GREEN TOP

Question 16

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

Answer 16

PLASTIC (SPRAY-DRIED)

Question 17

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

Answer 17

GLASS (LIQUID)

Question 18

What is the commercial name of K3 EDTA

Answer 18

SEQUESTRENE

Question 19

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

Answer 19

VERSENE

Question 20

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

Answer 20

THROMBIN

Question 21

Serum/plasma that contains large amounts of bilirubin

Answer 21

ICTERIC SAMPLE

Question 22

Serum/plasma contains large amounts of fats and lipids

Answer 22

LIPEMIC SAMPLE

Question 23

3 MAJOR TYPES OF THERMOMETER

Answer 23

1. LIQUID-IN-GLASS
2. ELECTRONIC THERMOMETER
3. DIGITAL THERMOMETER

Question 24

- Most COMMON type for volumetric measurement

Answer 24

BOROSILICATE GLASS

Question 25

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

Answer 25

VOLUMETRIC FLASK

Question 26

– designed to hold different volumes rather than one exact amount

Answer 26

ERLENMEYEK FLASK

Question 27

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

Answer 27

PERCENT SOLUTION

Question 28

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

Answer 28

NORMALITY

Question 29

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

Answer 29

MOLARITY

Question 30

MODE OF ACTION : OXALATE

Answer 30

Oxalate prevents cutting by binding calcium

Question 31

MODE OF ACTION :SODIUM FLUORIDE

Answer 31

Sodium fluoride preserves glucose and inhibits bacterial growth

Question 32

MODE OF ACTION: 3.2 % buffered sodium citrate

Answer 32

Prevent coagulation by chelating calcium

Question 33

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.

Answer 33

DILUTION

Question 34

MODE OF ACTION: Silicon in RED TOPPED TUBE

Answer 34

Promotes Blood Clot

Question 35

MODE OF ACTION: SPS

Answer 35

Prevent coagulation by binding calcium

Question 36

MODE OF ACTION: Lithium Heparin

Answer 36

It inhibits thrombin formation to prevent clotting