CH 2

Question 1

The ultimate goal of a quality assurance program is to

Answer 1

ensure the validity of laboratory results

obtained.

Question 2

Which of the following is a preanalytical component

of a quality assurance program?

Answer 2

turn around time

Question 3

Which of the following is a postanalytical component of a quality assurance program?

Answer 3

critical values

Question 4

Analytical components of a quality assurance

program are procedures and policies that affect the

Answer 4

technical testing of the specimen

Question 5

The purpose of quality control materials is to

Answer 5

assess the accuracy and precision of a method.

Question 6

Why are written procedure manuals necessary?

Answer 6

To ensure that all individuals perform the same task consistently

Question 7

Which of the following sources should include a protocol for the way to proceed when quality control
results exceed acceptable tolerance limits?

Answer 7

procedure manual

Question 8

Technical competence is displayed when a laboratory practitioner

Answer 8

recognizes discrepant test results.

Question 9

Quality control materials should have

Answer 9

a matrix similar to patient samples.

Question 10

Within one facility, what is the purpose of perform- ing duplicate testing of a specimen by two different laboratories (i.e., in-house duplicates)?

Answer 10

It can detect procedural and technical differences

between laboratories.

Question 11

Interlaboratory comparison testing as with proficiency surveys provides a means to

Answer 11

evaluate the performance of a laboratory compared with that of other laboratories.

Question 12

mode of transmission? smoking in the lab

Answer 12

ingestion

Question 13

Which of the following is not part of a Chemical Hygiene Plan?

Answer 13

To monitor the handling of biological hazards

Question 14

Which of the following information is not found on a material safety data sheet?

Answer 14

catalog number

Question 15

fluid that carries transported molecules and cells

Answer 15

blood

Question 16

a pump to move the fluids

Answer 16

heart

Question 17

vessels to carry fluid between the pump and body tissues

Answer 17

blood vessels

Question 18

cells that are separated by a matrix

Answer 18

connective tissue

Question 19

what is blood’s matrix

Answer 19

plasma

Question 20

the % of blood volume occupies by cells

Answer 20

hematocrit

Question 21

an aqueous medium for transport of inorganic ions, gases, and organic solutes

Answer 21

plasma

Question 22

what is plasma mostly made up of

Answer 22

90% water

Question 23

what are the most common plasma proteins

Answer 23

albumin 55%

fibrinogen 4%

Question 24

where does hemoglobin release o2

Answer 24

tissue level

Question 25

true or false: blood does not have nuclei or organelles

Answer 25

true

Question 26

function of the spleen

Answer 26

removes old RBCs | stores healthy RBC

Question 27

what generates new RBCs

Answer 27

hemopoietic tissues

Question 28

what controls erythropoiesis

Answer 28

kidneys

Question 29

what stimulates erythropoiesis

Answer 29

erythropoietin

Question 30

process of erythropoietin secretion

Answer 30

kidneys detect reduced o2 erythropoietin goes into the blood erythropoietin stimulates erythropoiesis in bone marrow more RBCs are released in blood

Question 31

what kind of cell are platelets

Answer 31

cell fragments

Question 32

where do platelets come from

Answer 32

shed from megakaryocytes in bone marrow

Question 33

what parts of the heart are involved in pulmonary circulation

Answer 33

right atrium | right ventricle

Question 34

what parts of the heart are involved in systemic circulation

Answer 34

left ventricle | left atrium

Question 35

blood circulation

Answer 35

all blood from superior and inferior vena cava -> right atrium -> tricuspid valve -> right ventricle -> pulmonary valve -> pulmonary trunk -> pulmonary artery -> lungs -> left atrium -> bicuspid valve -> left ventricle -> aorta

Question 36

where does the right side of the heart send blood

Answer 36

lungs

Question 37

where does the left side of the heart send blood

Answer 37

all over body

Question 38

what carries blood away from the heart

Answer 38

arteries

Question 39

why does blood move fast in the arteries

Answer 39

large radii = little resistance

Question 40

true or false: arteries are not elastic

Answer 40

false

Question 41

arterosclerosis

Answer 41

heartening of the arteries

Question 42

describe the vessels of a person with high blood pressure

Answer 42

constricted

Question 43

what allows arteries to expand

Answer 43

elastin fibers

Question 44

when does systolic blood pressure occur

Answer 44

ventricals contract

Question 45

which number is systolic blood pressure on a reading

Answer 45

top

Question 46

which number is diastolic blood pressure on a reading

Answer 46

bottom

Question 47

when does diastolic blood pressure occur

Answer 47

ventricles relax

Question 48

what is the main driving force of blood flow

Answer 48

mean arterial pressure

Question 49

formula of mean arterial pressure

Answer 49

= diastolic pressure+ (1/3(systolic pressure - diastolic pressure))

Question 50

what controls vessels contracting and relaxing

Answer 50

autonomic nervous system

Question 51

condition where fluid stay in interstitial space

Answer 51

edema

Question 52

hydrostatic pressure

Answer 52

pushes nutrients out

Question 53

what happens to blood pressure during hydrostatic pressure

Answer 53

increases

Question 54

what size molecules does hydrostatic pressure deal with

Answer 54

small

Question 55

what size molecules does oncotic pressure deal with

Answer 55

large