Atelectasis Flashcards
what is atelectasis
-str collapse of part of lung– impedes expansion the affected part is non fx
(airlessness part of lung is airlessness b/c structurally collapsed)
the three types of atelectasis
- obstructive/reabsorptive atelectasis
- compression atelectasis
- contraction atelectasis
obstructive/re-absorptive atelectasis
-airway obstruction (eg. by mucus) –air trapped– absorbed into capillaries–local collapse
compression atelectasis
external pressure on lungs (eg. tumor)
contraction atelectasis
scar tissue on lungs or pleura contracts & collpases lung
mnfts of atelectasis
- dyspnea
- tachypnea(increased resp rate)
- tachycardia (compensatory response)
- trachial shift or trachial deviation (more pressure on side that works will cause trachea to shift towards side that is affected)
what causes trachial shift or trachial deviation
more pressure on side that works with no atelectasis will cause trachea to shift towards side that is affected and has atelectasis
Diagnosing atelecatsis
- physical exam
- chest x-ray
- CT
- bronchoscopy
treatment of atelectasis
- treat underlying cause
- 02?