Pulmonary Function Testing Exam 1

Front 1

diffusing capacity of the lungs

Back 1

is the rate of gas diffsion across the alveolar-capillary membrane

Front 2

FEF50

Back 2

forced expiratory midflow

Front 3

FIF50

Back 3

forced inspiratory midflow

Front 4

what is the most reproducible indicator of airway obstruction and ususally indicates large airway involvemnet

Back 4

FEV1

Front 5

which portion of a FVC maneuver is effort dependent and effort independent?

Back 5

1st 50% is effot dependent, 2nd 50% is effot independent

Front 6

the difference between SVC and FVC reflects

Back 6

the trapping of air in the lungs when the effort is forced

Front 7

vital capactiy without a foced effrt is called

Back 7

solw vital capacity (SVC)

Front 8

expiratory flow below normal indicates ___ disease

Back 8

obstructive

Front 9

if lung volume is reduced, a __ disease is probably present

Back 9

restrictive

Front 10

upper airway obstruction will reduce flow rates in the initial __% of a forced expiratory VC maneuver

Back 10

25

Front 11

obstruction in the smaller airways will reduce flow rates in the __portion of a forced expiratory VC maneuver

Back 11

last 75%

Front 12

__ lung diseases cause reduced expiratory flows

Back 12

obstructive

Front 13

___ lung diseases reduced lung volumes

Back 13

restrictive

Front 14

reduced tital volume (VT) can be caused by ___ lung disease

Back 14

both obstructive and restrictive

Front 15

what is the most common cause of erroneous results in an FVC maneuver?

Back 15

proper coaching

Front 16

___ restrictive lung disorder reduce FVC by shrinking the lung.

Back 16

restrictive

Front 17

___ lung dysfunction causes decrease in the FVC by causeing a slow rise in the RV.

Back 17

obstructive

Front 18

if FVC is significantly smaller than SVC, ___ is occuring

Back 18

air trapping

Front 19

TLC is the sum of thsese to measurments

Back 19

VC and RV

Front 20

TLC is increased with most ___ lung disease

Back 20

obstructive

Front 21

TLC is decreased with most ___ lung disease

Back 21

restrictive

Front 22

inspiratory reserve volume and inspiraory capacity can be normal in ___ lung disease.

Back 22

both obstructive and restrictive

Front 23

the normal FEV1/FVC is about

Back 23

0.75

Front 24

FEV1/FVC is reduced with ___ disease

Back 24

obstructive

Front 25

FEV1/FVC is normal with ___ disease

Back 25

restrictive

Front 26

peak expiratory flow(PEF) is

Back 26

the maximum flow rate achieved by the patient during the FVC maneuver

Front 27

peak expiratory flow(PEF) is a popular measurement of patients with ___ lung disease

Back 27

obstructive

Front 28

Healthy young adults have a predicted MVV of about ___ L/min

Back 28

170

Front 29

maximal inspiratory pressure(MIP) and maximal exspiratory pressure(MEP) measures

Back 29

respiratory muscle strength

Front 30

in adults a VC less than __% is considered abnormal

Back 30

80

Front 31

how is a FVC maneuver done?

Back 31

by having the patient expire as forcefully and rapidly as possible after inspiring maximally

Front 32

what is back extrapolation?

Back 32

the way most computerized spirometer correct for a slow start-of-test

Front 33

FEV1% is also commonly written as

Back 33

FEV1/FVC

Front 34

in healty individuals, the FVC equal which other measurment?

Back 34

VC

Front 35

FVC is often lower than VC in people with ___ diseases.

Back 35

obstructive

Front 36

low FVC may be caused by ___ disease

Back 36

restrictive or obstructive

Front 37

FEV1 and FEV1/FVC are the most standardized indices of ___ disease

Back 37

obstructive

Front 38

what clinically defines an obstructive impairment as a result of spirometry?

Back 38

reduction of FEV1 along with a reduced FEV1/FVC ratio

Front 39

name some pathological conditions that can cause a decreased FEV1?

Back 39

fibrosis, edema, lesions, neuromuscular disorders, obestiy and chest wall deformities

Front 40

a decreased FEV1/FVC ratio is the hallmark of ___ disease

Back 40

obstructive

Front 41

the FEF25%-75% is indicative of the status of the ___ sized airways?

Back 41

medium to small

Front 42

what can be read directly from a F-V loop?

Back 42

FVC, peak expiratory flow(PEF) and peak inpiratory flow(PIF)

Front 43

the maximum expiratory flow volume(MEFV)curve is determined by

Back 43

elastic recoil and resistance in small airways

Front 44

the F-V loop is extreamly useful in diagnosing what size airway abnormalities?

Back 44

large

Front 45

what does PEF stand for?

Back 45

peak expiratory flow

Front 46

what does PIF stand for?

Back 46

peak inspiratory flow

Front 47

PEF is the maximum flow attained during a ___ maneuver?

Back 47

FVC

Front 48

PEF is primarily used to measure the function of which size airway?

Back 48

large

Front 49

MVV is reduced in people with moderate to severe ___ disease

Back 49

obstructive

Front 50

reduction of MVV my result from emphysema due to

Back 50

airway collapse and hyperinflation

Front 51

diffusing capacity of the lungs

Back 51

is the rate of gas diffsion across the alveolar-capillary membrane

Front 52

FEF50

Back 52

forced expiratory midflow

Front 53

FIF50

Back 53

forced inspiratory midflow

Front 54

what is the most reproducible indicator of airway obstruction and ususally indicates large airway involvemnet

Back 54

FEV1

Front 55

which portion of a FVC maneuver is effort dependent and effort independent?

Back 55

1st 50% is effot dependent, 2nd 50% is effot independent

Front 56

the difference between SVC and FVC reflects

Back 56

the trapping of air in the lungs when the effort is forced

Front 57

vital capactiy without a foced effrt is called

Back 57

solw vital capacity (SVC)

Front 58

expiratory flow below normal indicates ___ disease

Back 58

obstructive

Front 59

if lung volume is reduced, a __ disease is probably present

Back 59

restrictive

Front 60

upper airway obstruction will reduce flow rates in the initial __% of a forced expiratory VC maneuver

Back 60

25

Front 61

MVV may be normal in patients who have ___ disease

Back 61

restrictive

Front 62

MVV maneuver may be estimated by multiplying their __ by 35

Back 62

FEV1

Front 63

what is Raw?

Back 63

airway resistance

Front 64

how is pulmonary compliance measured?

Back 64

sticking a balloon in the esophagus

Front 65

what is the equation for a correction factor calculated for a spirometer?

Back 65

expected volume divided by measured volume

Front 66

name one combined restrictive and obstructive disorder.

Back 66

cystic fibrosis

Front 67

What does TET stand for?

Back 67

total expiratory time

Front 68

the FEV1/FVC compares...

Back 68

the amount of air exhaled in 1 second to the total amount exhaled during an FVC maneuver

Front 69

in ___ lung disorders, flow and volume are, in general, reduced equally

Back 69

restrictive

Front 70

name some pathologic conditions that alter the anatomic structures distal to the terminal bronchioles

Back 70

lung compression, atelectasis, pneumonia, calcification, fibrosis, tumor, cavitation

Front 71

Bernoulli's principle

Back 71

as the velocity of a fluid increases, the pressure exerted by that fluid decreases.

Front 72

CO2 has an affinity for hemoglobin approzimately ___ times greater than that of O2

Back 72

210

Front 73

Carboxyhemoglobinemia

Back 73

hemoglobin that has carbon monoxide bound to it

Front 74

RV is increase and VC is decreased in ___ disease

Back 74

obstructive