PFT's

Question 1

Extrinsic Restrictive Lung Disorders

Answer 1

Scoliosis, Kyphosis
Ankylosing Spondylitis
Pleural Effusion
Pregnancy
Gross Obesity
Tumors
Ascites
Pain on inspiration (Pleurosity, rib fx.)

Question 2

Intrinsic Restrictive Lung Disorders

Answer 2

Sarcoidosis
Tuberculosis
Pneumonectomy
Pneumonia

Question 3

FEV1

Answer 3

the volume of air that is forcefully exhaled in one second

75% of FVC

Question 4

FVC

Answer 4

the volume of air that can be maximally forcefully exhaled

NOT the TLC

Question 5

PEFR

Answer 5

a measure of the highest expiratory flow rate during the PFT test
It is measured in liters of air expired per second or liters of air expired per minute
It becomes a sensitive test for the presence of obstructive disease

Question 6

Obstructive Airway Disease PFTs

Answer 6

There is a rapid peak expiratory flow
The curve descends more quickly than normal
It takes on a concave shape
FEV1 decrease, FVC normal, ratio decrease

Question 7

Restrictive Lung Disease PFTs

Answer 7

both the FEV1 and FVC are reduced proportionately
by affecting both the FEV1 and the FVC, restrictive lung disease presents with a normal or increased FEV1/FVC ratio
Proportionate reduction in FEV1 and FVC
Normal or increased FEV1/FVC**
FEV1 Decrease, FVC decrease, ratio normal or increase