Pulmonary Function Testing Exam 1

Front 1

what is the maximum # of FVC attemts before you should give up?

Back 1

8

Front 2

IF the % predicted for FEV1/FVC is 88% to 90% or higher, then the patient has a/an ____ lung disease.

Back 2

restricted

Front 3

IF the % predicted for FEV1/FVC is 69% or lower, then the patient has a/an ____ lung disease.

Back 3

obstructed

Front 4

When performing a SVC maneuver, the subjuect must be free from any acute illness for at least the past ___ weeks.

Back 4

3

Front 5

Name 3 things that PFTing evaluates.

Back 5

lung size, flow rates and diffusion of gasses.

Front 6

Name 4 things that PFTing provides information on.

Back 6

ventilaory defects, degree of lung impairment, effectivness of therapy and effects on gas exchange.

Front 7

nomograms (patient variables) are usesd to determine...

Back 7

predicted normals in PFTing

Front 8

what is the most important factor in a nomogram?

Back 8

height

Front 9

list 7 factors in a nomogram.

Back 9

height, gender, age, race, enviroment(altitude), quality of coaching, patient's clinical state.

Front 10

what is the total lung copacity of a healthy young male?

Back 10

6.0L

Front 11

What is diffusing capacity used to determine?

Back 11

the rate of gas transfer across the alveolar capillary membrane.

Front 12

name 3 ways to indirectly measure the residual volume.

Back 12

closed-circuit helium dilution test, open-circut nitrogen washout test, body plethysmography

Front 13

how often should equipment be calibrated?

Back 13

daily

Front 14

equipment should be calibrated to within +/- ___%

Back 14

3 or 50ml, which ever is greater.

Front 15

a 3 liter super syringe has a maximum error of +/- __ml

Back 15

90.
range of 2.91 to 3.09

Front 16

what does ATPS stand for?

Back 16

ambient temp, pressure saturation

Front 17

what does BTPS stand for?

Back 17

body temp, pressure saturation

Front 18

Charles Law

Back 18

pressure is constant and volume and temp are directly proportional

Front 19

When measuring MVV, volumes should be...

Back 19

greater than VT but less than VC

Front 20

When measuring MVV, how many maneuvers should be done?

Back 20

2

Front 21

When measuring MVV, the two maneuvers should be within __% of each other.

Back 21

10%

Front 22

to check validity of MVV, compare it to FEV1. You do this by multipling FEV1 by __.

Back 22

35

Front 23

When viewing the results of a F-V loop you should be looking a picture of what?

Back 23

3 acceptable loops, superimposed

Front 24

In an acceptable FVC the best test is...

Back 24

the maneuver with the largest summ of FVC and FEV1.

Front 25

When doing a FVC which FEF 25%-75% do you use?

Back 25

the one taken from the best test.

Front 26

when doing a FVC, which FVC and FEV do you report?

Back 26

the largest

Front 27

what are the expiratory maneuver findings for a person with obstructive disease?

Back 27

decreased FVC, FEV1,FEF 25%-75%, PEFR, MVV, FEF50%, FEV1%

Front 28

what are the expiratory maneuver findings for a person with restrictive disease?

Back 28

decreased or normal FVC, FEV1,FEF 25%-75%,MVV. Normal PEFR, FEF50% and normal or increase FEV1%

Front 29

what is the most common reson to measure lung volumes?

Back 29

to assess severity of restrictive disease

Front 30

peak expiratory flow (PEF) most measures large, med. or small airway function?

Back 30

large

Front 31

peak expiratory flow (PEF) is the maximum flow attained during...

Back 31

FVC

Front 32

how many maneuvers should be performed in a peak expiratory flow maneuver?

Back 32

3

Front 33

which PEF is reported in a expiratory flow maneuver?

Back 33

the largest

Front 34

Peak expiratory flow can be meausured from 2 sources...

Back 34

F-V loop or with a portable peak flow meter

Front 35

what is one common cause of a large airway obstruction?

Back 35

tumor

Front 36

describe how a MVV is preformed.

Back 36

you breath in and out for 12 to 15 sec as deep and fast as possible

Front 37

name 3 things that can cause poor MVV results

Back 37

neurologic disease, muscle weakness, obstruction, poor patient effort

Front 38

MVV my be narmal in patients with ___ disease.

Back 38

restrictive

Front 39

pre-post bronchodilator studies determine...

Back 39

reversibility of airway obstruction

Front 40

In pre-post bronchodilator studies reversibility is considered significantly in creased if...

Back 40

greater than 12% and 200 ml for either FEV1 or FVC or changes in FEF 25%-75% of 20-30%

Front 41

there should be a minimum intrerval of __ minutes between pre and post bronchodilator studies

Back 41

15

Front 42

in pre-post bronchodilator studies pateints may perform several tests including...

Back 42

spirometry, lung volumes and diffusing capacity

Front 43

what is a significant improvement in SGaw in a pre-post bronchodilator study?

Back 43

35% increase

Front 44

name 6 indications for spirometery

Back 44

detect L. disease, extent of disease, effects of job exposure, effects of therapy, risk for sugery, evaluate disability

Front 45

what is the most basic PFT?

Back 45

vital capacity (VC)

Front 46

vital capacity (VC) is also refered to as...

Back 46

slow vital capacity (SVC)

Front 47

the 2 subdivsions of vital capacity (VC) are

Back 47

inspiratory capacity (IC) and Expiratory reserve volume (ERV)

Front 48

in which disease (obstructive or restrictive) is airflow in to or out of the lungs reduced?

Back 48

obstructive

Front 49

which disease (obstructive or restrictive) shows reduced lung volumes?

Back 49

restrictive

Front 50

restrictive defect is ...

Back 50

the inability to fully expand the lungs

Front 51

reduced lung volumes and capactity gernerally indicat ____ disease

Back 51

restrictive

Front 52

elevated residual volume or tatal lung capacity can indicate ___ disease

Back 52

obstructive

Front 53

air trapping or hyperinflation can indicate ___ disease

Back 53

obstructive

Front 54

name 3 mechanical restrictive defects that can cause inability fullly expand the lungs

Back 54

3rd trimester pregnancy, thoracic cage deformities, lung resection

Front 55

Vital capacity (VC) is measured by having the patient...

Back 55

inhale maximally then exhale slowly and completely.

Front 56

decreased vital capacity can be caused ___ disease

Back 56

restrictive or obstructive

Front 57

name 4 pathologic conditions that can cause a loss of distensible lung tissue in restrictive disease

Back 57

lung cancer, pneumonia, atelectasis, surgical removal of lung tissue

Front 58

name 3 mechanical factors that may cause limited diaphragm movement

Back 58

pregnancy, obesity, abdominal fluids

Front 59

healthy pateints can exhale __% of FVC in one second

Back 59

80%

Front 60

name 4 criteria for acceptability of FVC maneuver

Back 60

maximal effort, good start, 6 second exhalation, 3 acceptable maneuvers

Front 61

in a normal adult, the % of total volume exhaled during FEV1 is

Back 61

75%-85%

Front 62

normal FEV1/FEV (FEV1%) for a healthy adult is

Back 62

75%-85%

Front 63

reduced FEV and FEV1/FEV ratio indicated ___ disease.

Back 63

obstructive

Front 64

reduced FEV1 and FVC with a normal or elevated FEV1/FVC indicates ___ disease

Back 64

restrictive

Front 65

another term for peak expiratory flow (PEF) is

Back 65

FEFmax

Front 66

FEFmax (peak expiratory flow PEF)is the...

Back 66

highest flow measured during forced expiration

Front 67

forced expiratory flow (FEF) 25%-75% is the ...

Back 67

average expiratory flow rate over the middle 50% of the FVC

Front 68

forced expiratory flow (FEF)25%-75% indicates status of what size airways?

Back 68

medium and small

Front 69

forced expiratory flow (FEF)25%-75% less than 65% of predidcted indicates ___ disease

Back 69

obstructive

Front 70

name some pathological conditions associated with restrictive lung disease

Back 70

lung compression, atelectasis, pnemonia, fibrosis, and tumors

Front 71

what lung volumes and capacityes cannot be measured directly by spiromety

Back 71

residual volume (RV), functional resudual capacity(FRC) and TLC

Front 72

name 3 ways to measure RV, FRV and TLC (the ones that cannot be measured directly by spirometry.)

Back 72

closed circuit helim dilution, open circuit nitrogen washout and body plethysmography

Front 73

what is the most significant factor in the SVC maneuver?

Back 73

patient effort

Front 74

how many acceptable maneuvers do you need for an acceptable VC?

Back 74

2, volumes within 150ml

Front 75

vital capacity without a forced effort is called..

Back 75

slow vital capacity (SVC)