Capillary Puncture Exam (Sem 1 Final)

Question 1

Venipuncture

Answer 1

method of blood collection from a vein

Question 2

Veins

Answer 2

blood vessels with valves that carry blood toward the heart

Question 3

How many layers are veins?

Answer 3

3 layers

Question 4

Arteries

Answer 4

Blood vessels w/ a pulse that carry blood away from the heart

Question 5

how many layers are arteries?

Answer 5

3 layers

Question 6

Capillaries

Answer 6

network of microscopic blood vessels connecting arterioles and venules that contain a mixture of arterial and venous blood

Question 7

Requisition

Answer 7

Generated by a physician/provider’s order

Question 8

Ways to verify a patient before performing capillary puncture/venipuncture

Answer 8

full name & DOB

Question 9

Most critical error a phlebotomist could make before collecting a blood specimen

Answer 9

the misidentification of a patient

Question 10

Positions for patients when performing blood collection methods

Answer 10

semi-reclining position

Question 11

Interstitial Fluid

Answer 11

all the fluid except blood that is found in the same space between tissues

Question 12

interstitial fluid is what color?

Answer 12

Clear

Question 13

What is another name for interstitial fluid?

Answer 13

Tissue Fluid

Question 14

Lancet

Answer 14

Capillary puncture devices

Question 15

3 characteristics of Lancets…

Answer 15

sterile, disposable, retractable

Question 16

lancets are __________?

Answer 16

color coded

Question 17

what is the depth of a heel stick for an infant?

Answer 17

never exceeding 2mm

Question 18

what is the depth of a finger stick for an adult?

Answer 18

2-3mm

Question 19

Types of capillary puncture collection containers

Answer 19

microtainers, capillary tube

Question 20

point of care testing…

Answer 20

direct contact patient setting

Question 21

microcollection

Answer 21

collecting a small amount of blood by capillary puncture of the heel/finger

Question 22

capillary action

Answer 22

process by which blood flows freely into a capillary tube in microcollection procedures

Question 23

osteomyelitis means what?

Answer 23

bone inflammation

Question 24

what causes osteomyelitis?

Answer 24

bacterial infection

Question 25

cyanotic

Answer 25

condition in which the skin/mucous membranes are blue

Question 26

what causes cyanosis?

Answer 26

oxygen deficiency

Question 27

methods to increase blood flow to capillary puncture sites

Answer 27

• heat pack
• massage
• warm towel

Question 28

what is the time frame for blood collection for newborn screening?

Answer 28

between 24&72 hours after birth

Question 29

what setting is the blood collection generally performed at for newborn screening?

Answer 29

hospital nursery

Question 30

what setting is the blood collection generally performed at for newborn screening?

Answer 30

hospital nursery

Question 31

When should capillary puncture not be used?

Answer 31

• If testing requires a large amount of blood
• patient has poor peripheral circulation in the hands and feet
• Interstitial fluid from edema could dilute the test causing inaccurate results

Question 32

What if blood flow stops during collection of a capillary blood specimen?

Answer 32

the entire procedure should be repeated at a new site with a new sterile puncture device

Question 33

What if blood flow stops during collection of a capillary blood specimen?

Answer 33

the entire procedure should be repeated at a new site with a new sterile puncture device

Question 34

What conditions are tested for in newborn screening?

Answer 34

• phenylketonuria (PKU)

- hypothyroidism

Question 35

Why are conditions screened in newborns?

Answer 35

looking for a newborn that lacks certain enzymes, proteins, or hormones needed for certain metabolic reactions

Question 36

What could happen if the conditions weren’t screened?

Answer 36

abnormalities as severe as mental retardation could develop