17-2

Question 1

What are the 2 methods of blood collection?

Answer 1

Capillary and Venipuncture

Question 2

Capillary Puncture method of choice for:

Answer 2

• pediatric patients
• extreme obesity
• severe burns
• thrombotic tendencies

Question 3

Capillary puncture is collected from what 4 sites?

Answer 3

• heel
• finger
• earlobe
• toe

Question 4

First choice of capillary puncture for older infants and elderly is the _______.

Answer 4

middle or ring finger

Question 5

common site for a capillary puncture in infants?

Answer 5

plantar surface of the heel perpendicular to the big toe

Question 6

What is the best method of blood collection?

Answer 6

Venipuncture

Question 7

Can you draw from IV sites?

Answer 7

No

Question 8

Why can you not draw from IV sites?

Answer 8

• Dilutes specimen

* Alters test results

Question 9

What are the 5 pieces of equipment for Capillary puncture?

Answer 9

• Sterile gauze pads
• 70% ETOH or Betadine solution
• Lancet
• Capillary tubes or QBC Star tube
• Bandage

Question 10

How many times do you milk the finger?

Answer 10

5-6 times

Question 11

You can clean the finer with either ______.

Answer 11

alcohol pad or povidone-iodine

Question 12

Any alcohol left on site can cause blood to?

Answer 12

Hemolyze

Question 13

Where do you stab the finger?

Answer 13

side of the finger (off center), across the striations of the fingertip

Question 14

Max depth of lancet should not exceed

Answer 14

2mm

Question 15

Why do you wipe away the first drop of blood?

Answer 15

avoid dilution of the specimen with tissue fluid.

Question 16

Obtain specimen with a capillary tube placed _____

Answer 16

horizontally 15 degrees to the fingertip

Question 17

When collecting blood in the capillary tube what are you trying to avoid?

Answer 17

air bubbles

Question 18

What are the 6 pieces of equipment for Venipuncture method?

Answer 18

1 Sterile gauze
2 alcohol pad
3 latex tourniquet
4 vacutainer needle
5 vacutainer holder
6 vacutainer collection tube

Question 19

Never perform a venipuncture with a patient standing up.

Answer 19

True

Question 20

How far up do you apply the tourniquet from the antecubital area?

Answer 20

2-3 inches

Question 21

Use enough compression to compress the vein but not the ______

Answer 21

artery

Question 22

When using a blood pressure cuff instead of a tourniquet how many mm/Hg?

Answer 22

30mm/Hg

Question 23

What angle is the needle for venipuncture?

Answer 23

15 degrees & bevel up

Question 24

Have the patient hold pressure after venipuncture for how long?

Answer 24

3 min

Question 25

Gently invert the tubes to prevent ______

Answer 25

clotting

Question 26

Do you label specimens before or after collection?

Answer 26

after

Question 27

To obtain a whole blood specimen for testing what must be used?

Answer 27

anticoagulant

Question 28

What is EDTA?

Answer 28

Ethylene Diamine Tetracetic Acid

Question 29

EDTA is an anticoagulant used in what color tubes?

Answer 29

purple

Question 30

What tube is typically used in hematology studies?

Answer 30

Purple

Question 31

What 4 hematology studies are purple tops used for?

Answer 31

1 CBC 2 Differential WBC 3 ESR 4 A1C

Question 32

What is the most widely used anticoagulant?

Answer 32

EDTA

Question 33

What is a chelating agent that binds calcium so blood cannot clot?

Answer 33

EDTA

Question 34

Does EDTA effect cellular morphology?

Answer 34

No

Question 35

How long can purple top specimens be refrigerated?

Answer 35

24 hours

Question 36

Sodium Citrate is what tube color?

Answer 36

Light blue

Question 37

What is the liquid anticoagulant used in light blue tops?

Answer 37

Sodium Citrate

Question 38

What is typically used for coagulation studies?

Answer 38

Light blue/Sodium citrate

Question 39

What 4 coagulation studies are light blue top?

Answer 39

1 Prothrombin Time (PT) 2 Partial Thromboplastin Time (PTT) 3 Fibrinogen (Fib) 4 D-dimer

Question 40

How does sodium citrate work?

Answer 40

chelating agent that binds calcium

Question 41

How long are light blue tops good for after collection?

Answer 41

4 hours

Question 42

Heparin is what color tube?

Answer 42

green

Question 43

What is a liquid or powder anticoagulant found in green tops?

Answer 43

Heparin

Question 44

What color tubes are typically used for plasma studies and chemistry testing?

Answer 44

green tops

Question 45

``` What tube color is used for Ammonia and Adrenocorticotropic hormone (ACTH)? ```

Answer 45

green

Question 46

What anticoagulant works by inhibiting the clotting enzyme thrombin, by creating antithrombin?

Answer 46

Heparin

Question 47

Does a red tube top have anticoagulant?

Answer 47

No

Question 48

What tube is used for chemistry and serology?

Answer 48

red tube

Question 49

Does a gold top/tiger top contain anticoagulant?

Answer 49

No

Question 50

What does a gold top/tiger top contain?

Answer 50

serum separator gel

Question 51

Which tube is primarily used for chemistry testing?

Answer 51

Gold top/Tiger top

Question 52

What tube color uses sodium fluoride?

Answer 52

grey tube

Question 53

Which tube is used primarily for glucose studies?

Answer 53

grey

Question 54

What inhibits glycolysis in a grey top?

Answer 54

Sodium fluoride

Question 55

What color tube is used for ETOH level analysis?

Answer 55

grey

Question 56

Why can you not pull blood from an IV site?

Answer 56

dilution of the sample with IV fluids

Question 57

Prolonged application of a tourniquet will produce an increase in what?

Answer 57

blood cell concentration

Question 58

Using the wrong tube type can result in what?

Answer 58

inability to perform the test

Question 59

Using the wrong draw order can result in what?

Answer 59

possible contamination

Question 60

Which is drawn first tubes with additives or without?

Answer 60

without additives

Question 61

What could a short fill cause?

Answer 61

quantity not sufficient to preform test | improper anticoagulant/blood ratio

Question 62

What does not mixing the tube result in?

Answer 62

blood clots

Question 63

What are 4 blood draw complications?

Answer 63

1 Syncope 2 Infection 3 Continual bleeding 4 Hematoma