COPD Flashcards
cOPD characterized by
airway obstruction
lung hyperinflation
systemic manifestations
progressive
Chronic bronchitis - blue bloater
excess mucous occuring
most days for 3 months
2 consecutive years
NO obstruction required
Emphysema - pink puffer
abnormal PERMANENT enlargement of airspace distal to terminal bronchiole
NO FIBROSIS
To qualify for a diagnosis of COPD -
Post bronchodilator FEV1 < 80% of predicted
FEV1/FVC < 0.7
3 main physiologic changes in COPD
- mucous hypersecretion
- ciliary dysfunction
- airflow obstruction
signs and symptoms of COPD
- chronic cough
- wheezing
- chronic sputum production
- dyspnea
what is the most useful predictor of 5-year survival for COPD patient
it’s functional impairment
meds for COPD
- SAAC, LAAC, SABA, LABA
- anti inflammatory - PDE4i, steroids
what contributes to the sensation of breathlessness in COPD
air trapping
how do the bronchodilators act in COPD
decrease dynamic hyperinflation - more room to breathe
FRC decreases
what should NOT be used as monotherapy in COPD
ICS
but they decrease frequency of exacerbtations
when can you use ICS
WITH a LABA
when does oxygen help for COPD
only if you’re hypoxemic
- has to be worn all the time
how do you treat AECOPD
optimize bronchodilation
systemic steroid
consider Abx if purulent sputum
