Test One

Question 0

Serum is the liquid portion of the blood without :

Answer 0

Fibrinogen

Question 1

A centrifuge must always be balanced which means the tubes must be

Answer 1

Placed opposite each other or the centrifuge must be full when it is turned on

Question 2

Serum sits to clot hence no :

Answer 2

Fibrinogen

Question 3

Centrifuge for 10 to

Answer 3

15 mins

Question 4

Anticoagulant

Answer 4

A chemical that inhibits clotting

Question 5

Buffy coat

Answer 5

Thin layer WBC’s & platelets between separated cells in plasma

Question 6

Centrifuge

Answer 6

Instrument that spins at high rpm to separate substances

Question 7

Hemolysis

Answer 7

Breakdown of blood

Question 8

Fibrinogen

Answer 8

Protein present in blood that is essential for clotting

Question 9

Plasma

Answer 9

Liquid portion of whole blood (unclotted blood) that contains all the clotting factors.
Clear yellowish

Question 10

Hematoma

Answer 10

Swelling or mass of clotted blood under the skin

Question 11

Bifurcation

Answer 11

Separated into two branches

Question 12

Serum

Answer 12

Liquid portion of blood that does not contain any clotting factors
Clear yellowish

Question 13

Syringe advantages

Answer 13

Comes in various sizes, able to control amount of blood, best for small spidery veins.

Question 14

Syringe disadvantages

Answer 14

Slower, smaller quantities.

Question 15

Vacutainer advantages

Answer 15

Faster, large volume of blood, multiple sampling (ability to fill multiple tubes in one stick)

Question 16

Vacutainer disadvantages

Answer 16

Less control, veins collapse under vacupressure

Question 17

Where is the tourniquet applied

Answer 17

Two to three inches above antecubicle site

Question 18

How long is tourniquet applied

Answer 18

Never leave on longer than one minute

Question 19

What is the preferred site for a blood draw

Answer 19

Antecubicle veins, median cubicle, cephalic & basilic

Question 20

Why r antecubicle veins preferred site for blood draw

Answer 20

Large, close to surface, easily accessible

Question 21

Supplies required to perform venipuncture

Answer 21

Tidy towel, cotton or gauze, bandage, 20-21 gauge 1 inch needle, tube holder & alcohol

Question 22

Serum is clear yellowish and contains no

Answer 22

Fibrinogen

Question 23

Serum tubes

Answer 23

SST or red

Question 24

Plasma is clear yellowish and contains all

Answer 24

Clotting factors intact

Question 25

Plasma tubes

Answer 25

Lavender, EDTA (anticoagulant)

Question 26

Lavender tubes test plasma | Tests done are:

Answer 26

CBC, hematocrit, hemoglobin

Question 27

Red SST tubes test serum. Clotting additive or nothing. Tests:

Answer 27

Chemistries, electrolytes, and cholesterol

Question 28

Grey tubes sodium fluoride used for

Answer 28

Used for fasting or random glucose (gtt)

Question 29

Never draw blood above an IV, always below, ask nurse to :

Answer 29

Turn off IV for 2 mins b4 drawing blood, make sure nurse turns IV back on after the draw