Ch 17 Phlebotomy

Question 1

The collection of blood

Answer 1

phlebotomy

Question 2

the collection of an arterial blood specimen

Answer 2

arterial puncture

Question 3

collection of a venous blood specimen

Answer 3

venipuncture

Question 4

collection of capillary blood specimen

Answer 4

skin puncture

Question 5

The most common site for venipuncture is the..

Answer 5

antecubital space

Question 6

when the blood flows from the tube back into the patient’s vein during the procedure

Answer 6

venous reflux

Question 7

How to prevent venous reflux

Answer 7

have the patient hold their arm in a downward position

Question 8

Why do you apply a tourniquet?

Answer 8

to make the veins more visible

Question 9

correct technique for applying a tourniquet

Answer 9

it should not be on for longer than a minute

Question 10

what happens when a tourniguet is applied too tight?

Answer 10

you wont get any blood, it’s uncomfortable, you could get inaccurate test results

Question 11

Separation of blood

Answer 11

separate into serum, a buffy coat, and blood cells

Question 12

How is serum obtained?

Answer 12

from clotted blood that has been centrifuged

Question 13

How is whole blood obtained?

Answer 13

by using a tube with an anticoagulant

Question 14

What gauge needle is used for venipuncture

Answer 14

21 gauge

Question 15

the size of the tube depends on..

Answer 15

the amount of specimen required for the test

Question 16

Which tube contains EDTA?

Answer 16

lavender and pink

Question 17

what does the red tube contain?

Answer 17

nothing

Question 18

What color tube is used for a CBC

Answer 18

lavender or pink

Question 19

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

Answer 19

light blue

Question 20

what color tube is used for a blood chemistry test?

Answer 20

red

Question 21

What happens if you use an outdated evacuated tube?

Answer 21

it may no longer contain a vacuum

Question 22

Correct order of draw

Answer 22

Yellow, Blue, Red, Green, Lavender/Pink, Gray

Question 23

Technique for working with evacuated tubes

Answer 23

invert them

Question 24

Correct angle of insertion for a venipuncture and why

Answer 24

10 to 15 degrees. An improper angle could cause the needle to go in above or through the vein. You would either not draw any blood or blow through the vein

Question 25

what causes patient discomfort or pain when performing a venipuncture

Answer 25

moving the needle after inserting it into the vein

Question 26

Site you would NOT use for venipuncture

Answer 26

scarred, bruised, or burned skin, any areas that are painful, or the same side as a blood pressure cuff or mastectomy

Question 27

How does a scarred vein feel?

Answer 27

hard and stiff

Question 28

how do you prevent a vein from rolling?

Answer 28

anchor the vein by applying firm pressure

Question 29

what do you do if you suspect a vein might collapse?

Answer 29

use the butterfly method to perform the venipuncture

Question 30

______ could cause the patient to have an adverse reaction to the tube additive, especially if the additive in the tube is _____.

Answer 30

venous reflux, EDTA

Question 31

what should you do if a sudden swelling occurs in the area around the puncture site

Answer 31

pull the tourniquet, then the tube, pull out the needle gently, then quickly apply PRESSURE

Question 32

________ occurs when a needle with a small lumen is used

Answer 32

hemolysis

Question 33

Hemolysis results in..

Answer 33

a breakdown of red blood cells causing inaccurate test results

Question 34

What’s the priority if the patient begins to fall?

Answer 34

protect the patient from injury