Respiratory Pathophys Flashcards
1
Q
What is COPD?
A
Chronic Obstructive pulmonary disorder
- A progressive chronic lung diseases that limit air flow and gas exchange
2
Q
What is chronic bronchitis characterised by?
A
- chronic inflammation of bronchi
- excess mucus production
- chronic productive cough
- blue bloaters
3
Q
How is emphysema characterised?
A
- abnormal permanent enlargement of the airsick distal to terminal bronchioles due to damage to alveolar walls (air sacs) within the lung
- pink puffers
4
Q
Name 3 causes of COPD
A
- smoking
- LT exposure to industrial pollution, indoor air pollution
- chemical fumes
- genes
5
Q
What is type 1 respiratory failure?
A
- failure in O2 exchange, hypoxemia, most common with acute lung diseases e.g pulmonary oedema and pneumonia.
6
Q
What is type 2 respiratory failure?
A
-hypercapnia- body cannot remove carbon dioxide from the body
7
Q
Name 3 causes of type 2 respiratory failure
A
- Drug overdose
- chest wall abnormality
- COPD
- severe asthma
8
Q
Type 2 respiratory failure:
- Should PaCO2 be more or less than 6.7kPa?
- What should normal PaCO2 levels be?
A
- More
- 6.0kPa
9
Q
A
10
Q
What is meant by a V/Q mismatch?
A
