Icm Pulmonology 02: Pft

Front 1

VT is composed of ___ (2).

Back 1

Vd
Va

Front 2

Vd is ___.
a typical value is ___ ml.

Back 2

anatomical dead space
150

Front 3

Va is ___.
a typical value is ___ ml.

Back 3

alveolar volume
350

Front 4

a person normally has ___cc/kg of VT

Back 4

7

Front 5

FRC is ___. it comprises ___ and ___. it is measured by ___.

Back 5

functional residual capacity
ERV
RV
body box plethysmography

Front 6

IC is ___. it comprises ___ and ___.

Back 6

inspiratory capacity
VT
IRV

Front 7

VC is ___. it comprises ___ and ___.

Back 7

vital capacity
IC
ERV

Front 8

TLC is ___. it comprises ___ and ___.

Back 8

total lung capacity
VC
RV

Front 9

boyle's law for body box

Back 9

FRC = Patm*(Pbox/Paw)

Front 10

drawback of body box

Back 10

overestimation of FRC in obstructive disease

Front 11

drawback of helium dilution measurement

Back 11

underestimation of FRC in case of obstructive disease

Front 12

in healthy people, ___ is almost equal to VC.

Back 12

FEV1

Front 13

peak flow is early/late in forced expiration, and comes from ___.

Back 13

early
large airways

Front 14

FEV25-75 is from the ___ of FEV1 and comes from ___.

Back 14

middle .5
small airways

Front 15

expiratory volume plateaus are reached in ___ conditions, but not in ___

Back 15

normal
restrictive disease
obstructive disease

Front 16

___ is most sensitive to small airway disease.

Back 16

PEF25-75

Front 17

flow/volume loops are only plotted for ___.

Back 17

forced expiration

Front 18

5 PFT findings for obstructive disease

Back 18

reduced FEV1
reduced FVC
FEV1/FVC < 80%
increased RV
increased TLC

Front 19

2 uses for FEV1 in asthma

Back 19

methacholine challenge test
measure response to ventolin

Front 20

on flow/volume loop, asthma is visible as ___.

Back 20

left shifted, narrower, smaller amplitude loop

Front 21

in emphysema, the flow/volume loop is ___

Back 21

concave up

Front 22

5 PFT findings in restrictive disease

Back 22

reduced FEV1
reduced FVC
FEV1/FVC > 80%
reduced RV
reduced TLC

Front 23

on flow/volume loop, restrictive disease is visible as

Back 23

right shifted, narrower, decreased amplitude loop

Front 24

reduced DLCO is primarily associated with ___ (4)

Back 24

smoking
emphysema
restrictive disease
vascular diseases

Front 25

DLCO may be decreased by ___ (2).

Back 25

reduced interface area
increased interface thickness

Front 26

T/F: increased perfusion of lungs increases CO uptake

Back 26

false

Front 27

CO uptake is ___ limited

Back 27

diffusion

Front 28

it takes ___ of the RBC traversal time for PaO2 to rise to PAO2

Back 28

1/3

Front 29

O2 uptake is ___ limited at rest, ___ limited under exertion

Back 29

perfusion
diffusion

Front 30

DLCO is increased in ___ (3)

Back 30

alveolar bleeding
polycythemia
HF