Phlebotomy Equipment

Question 1

What is in the evacuated tube system?

Answer 1

• double-pointed needle and collection tube holder
• multi-sample needle

Question 2

What is the most common gauge for evacuation system?

Answer 2

21-22 gauge

Question 3

What is the evacuated tube?

Answer 3

vacutainer
- negative internal pressure

Question 4

What are other venipuncture systems?

Answer 4

• needle and syringe systems
• butterfly system
• evacuated tube system

Question 5

What is the butterfly system?

Answer 5

• winged infusion set
• reserved for small, fragile veins

Question 6

What is the common needle for butterfly system?

Answer 6

25-26 gauge

Question 7

What can smaller needles cause?

Answer 7

hemolysis

Question 8

What is hemolysis?

Answer 8

bursting of RBC

Question 9

What is the order of draw for venipuncture?

Answer 9

Stop - yellow top stopper
Light - light blue
Red - red
Stay - gold/tiger top (SST)
Put - PST (light green)
Green - dark green
Light - lavender
Go - gray

Question 10

What does white cap mean?

Answer 10

sterile

Question 11

What does light blue cap mean?

Answer 11

citrate

Question 12

What does red cap mean?

Answer 12

serum

Question 13

What does green tube mean?

Answer 13

heparin

Question 14

What does purple cap mean?

Answer 14

EDTA

Question 15

What does gray cap mean?

Answer 15

oxalate

Question 16

What is yellow tube used for? What is the additive?

Answer 16

• SPS
• prevents clotting and stabilizes bacterial growth
• used for cultures on blood or body fluid

Question 17

What is light blue tube for? How do you fill it correctly?

Answer 17

• coagulation testing
• must be completely full

Question 18

What is PT/INR test for? (prothrombin time)

Answer 18

monitor results of coumadin/warfarin

Question 19

What is PTT test for? (activated partial thromboplastin time)

Answer 19

monitors results of heparin (IV)

Question 20

What is DVT?

Answer 20

deep vein thrombosis

Question 21

What is PE?

Answer 21

pulmonary embolism

Question 22

What are red-stoppered tubes for? How do they work?

Answer 22

• used for whole blood collection that is allowed to clot
• blood is centrifuged and serum is poured off after clotting

Question 23

What are the additives for red-stoppered tubes?

Answer 23

• glass: no additive
• plastic: silica

Question 24

How long does clotting take?

Answer 24

half an hour

Question 25

What is gold/tiger top/red-grey marbled tube for? What is the additive?

Answer 25

serum separator
- SST additive
- chemistry testing

Question 26

What are green-stoppered tubes for? What does it have?

Answer 26

• plasma samples
• determines several chemical constituents or special hematology testing
• liver function, kidney function
• has heparin

Question 27

What is lavender tube for? What does it contain?

Answer 27

• determines blood cell components
• EDTA

Question 28

What is gray tube used for? What additive?

Answer 28

• glucose and alcohol blood collections
• sodium fluoride and potassium oxalate

Question 29

How many times to invert blue tube?

Answer 29

3-4 times (blue = 4 letters)

Question 30

How many times to invert serum tube?

Answer 30

5 times (serum = 5 letters)

Question 31

How many times to invert light green tube?

Answer 31

8-10 times (light green = 10 letters)

Question 32

How many times to invert lavender tubes?

Answer 32

8-10 times (lavender = 8 letters)