Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

► Med Misc 44 > PFTs > Flashcards

PFTs Flashcards

1
Q

Introduction:

there are 2 types of ventilatory d/o.. what are they?

A

Restrictive

Obstructive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Introduction:

Preanesthestic identification and treatment of reversiable ventilatory defects are essential to improve outcomes. What si teh easist amenable to treat? what type is generally difficult to reverse and treat?

A

Easy - COPD

Difficult - restrictive d/o

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Introduction:

it is desireable to perform spirometry on all pts w/ unexplained dyspnea ad in those whom COPD is suspected. A (increase or decrease) in FEV1/FVC is characteristic of obstruction dz

A

Decrease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Introduction:

what does spirometry help do?

A

distinguish restrictive ventilatory defects from obstructive ventilatory defects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Introduction:

what provides an alternative method for assesing Pulmonary function?

A

Flow-volume loops

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Introduction:

what are 2 advantages of flow-volume loops over spirometry?

A

early detection of COPD

differentiate anatomic location of obstruction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Spirometry:

what 5 Lung volumes and capacities are obtained form Spirometric recording?

A

TIdal Volume (TV)

Vital Capacity (VC)

Inspiratory capacity (IC)

Inspiratory reserve volume (IRV)

Expiratory reserve volume (ERV)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Spirometry:

what 3 lung volumes are not directly obtainable

A

FRC

Residual Volume (RV)

Total lung capacity (TLC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what are 3 ways to measure FRC

A

helium Dilution

Nitrogen washout

Body Plethysmography

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Spirometry: Static

Label this

Draw this out for boards

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Spirometry: Static

what makes up FRC

A

ERV + RV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Spirometry: Static

what makes up inspiratory capacity (IC)

A

Tv + IRV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Spirometry: Static

what makes up VC

A

ERV + IC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does the following stand for:

FEV1

A

Forced Expiratory Volume in 1 sec

this is the volume of gas that can be exhaled within 1 sec of begining forced expiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does the following stand for:

FVC

A

Forced Vital Capacity

this is the volume of gas that can be exhaled during a forced expiratory maneuver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does the following stand for:

FEV1 / FVC

A

ratio used to distinguish between restricive and obstructive disease

17
Q

What does the following stand for:

FEF 25-75

A

forced expiratory flow from the point where 25% of the FVC has been exhaled to the point where 75% FVC has been exhaled.

18
Q

the FEF 25-75 is best for assessing what?

A

small airway disease

19
Q

Obstructive Disease:

what are 4 types

A

Asthma

COPD

Chronic Bronchitis (blue Bloater)

Emphysema (pink puffer)

20
Q

Restrictive Disease:

what are 4 examples

A

Pulmonary fibrosis

Pneumothorax

Chest wall dz (scoliosis)

NM disease (ALS, MG)

21
Q

FEV1/FVC ratio:

what is normal value?

A

> 0.7

22
Q

FEV1/FVC ratio:

normal picture

A
23
Q

FEV1/FVC ratio:

how is Obstructive Dz diagnosed?

A

if both FEV1 and FVC are low and the Ratio is

24
Q

FEV1/FVC ratio:

how is restrictive Dz diagnosed

A

if both FEV1 and FVC are low and the ratio is >0.7

25
Q

FEV1/FVC ratio:

a comparison of all 3

A
26
Q

What is normal FEV1

A

4L

(think of V/Q 4/5)

27
Q

what is normal FVC

A

5L.min

thik of V/Q

4/5

28
Q

FEV1/FVC ratio: Problems state is restrictive or obstructive dz

FEV1 = 3.6

FVC = 4.8

A

0.75

Normal

29
Q

FEV1/FVC ratio: Problems state is restrictive or obstructive dz

FEV1 = 1.8

FVC= 2.2

A

0.81

Restrictive

30
Q

FEV1/FVC ratio: Problems state is restrictive or obstructive dz

FEV1 = 2.2

FVC = 4.8

A

0.45

obstructive

31
Q

Flow Loop:

where is inspiration on the graph?

A

lower half

32
Q

Flow Loops:

Where is Expiration of the graph

A

Top half

► Med Misc 44 (72 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions