obst. lung disease - asthma Flashcards
1
Q
def. asthma
A
inflamm. disorder of the airway causing paroxysmal or persistant Sx such as dyspnea, chest tightness, cheeze, associated with variable airflow limitations
2
Q
Sx of asthma
A
vary in time and severity - breathlessnes - chest tightness - cough - wheeze worse at night colds "go to chest"
3
Q
2 predisposing factors
A
- atopy
2. genetics
4
Q
3 causal factors
A
- allergens - indoor and outdoor
2. occupational
5
Q
6 contributing facotrs
A
- air pollution
- diet
- BMI
- low birth weight
- resp infections
- smoking
6
Q
steps to Dx
A
- Hx and Phx
- PFT
- evaluate airway responsiveness
- exercise and methacholine challenge
7
Q
what is seen on a PFT
A
low FEV1/FVC ratio
8
Q
what is seen on PFT for diagnosis
A
- increases FEV1> 12% after inhaling B-agonists
- decreased PEF>10% after 6 minutes of execise
9
Q
what is QOL in asthma
A
- 55% not well controlled
- goal should be for patient to lead a normal life
10
Q
4 things to do when poorly controlled
A
- confirm diagnosis
- checkcompliance
- review tech.
- question exposures/env
11
Q
5 parts to treatment strategy
A
- ID and avoid triggers
- acheive control with approp. meds
- monitor and adjust meds
- devise an action plan for exacerbations
- educate patients
12
Q
what are B-agonists
A
- B2 selective so not heart issues
- small doses
- to site of action
13
Q
what are B-agonists for
A
short acting
- releivers
14
Q
3 B-agonist formats
A
- inhalers
- nebulized
- oral
15
Q
what is action of inhaled corticosteroids
A
- reduce inflammation in the broncioles
2. preventer of further damage
