Pathology of Obstructive Lung Diseases Flashcards Preview

Respiratory Block > Pathology of Obstructive Lung Diseases > Flashcards

Flashcards in Pathology of Obstructive Lung Diseases Deck (16):
1

What is obstructive lung disease characterised by?

Airflow limitation

2

In obstructive lung disease, is FEV1 increased or reduced?

reduced

3

Bronchial asthma is described as an inflammatory condition of the what?

Conducting airways in the lungs

4

Bronchial asthma is generally considered to be reversible or irreversible?

Reversible

5

Why is bronchial asthma considered to be reversible?

As it is caused by muscle spasm and inflammation, 2 not permanent processes

6

Why is it that an asthmatic attack can be soothed by medical intervention?

It is a reversible process

7

What is the main common cause of COPD?

Exposure to tobacco smoke

8

IS the damage in airflow limitation in COPD reversible?

No

9

How is chronic bronchitis defined clinically?

Cough productive of sputum

10

What is the name of the most common form of emphysema?

Centriacinar

11

What is the name given to the form of emphysema that is connected to alpha-1-trypsin deficiency?

Panacinar

12

What is the definition of a bulla?

An emphysematous space greater than 1cm

13

Emphysema can be caused by the inbalance of what?

Protease and antiprotease

14

How is type 1 respiratory failure defined?

Partial pressure of oxygen in arterial blood being less than 8kPa

15

Give the 4 main ways that gas exchange can be compromised?

Ventilation/perfusion imbalance
Diffusion impairment
Reduced respiratory drive
During acute exacerbation

16

A fall in PaO2 due to hypoventilation can be corrected by doing what?

Raising the fraction of inspired air which is oxygen