Restrictive Pulmonary Pathophysiology Flashcards
Where is EEV relative to vital capacity?
At the end of Tidal Volume – where the lungs don’t need any energy to remove air
The elastic recoil of the lungs creates what type of pull?
Inward
The elastic recoil of the chest wall connective tissue what type of pull?
Outward
How do changes in capillary oncotic and hydrostatic contribute to pulmonary edema?
Primarily an increase in hydrostatic pressure causes fluid to move into the interstitial space
Do changes in capillary oncotic and hydrostatic pressures predominantly affect ET, TT, or both?
Predominately Equilibrium Time
What is ARDS?
Pulmonary edema due to inflammation – “Adult Respiratory Distress Syndrome”
How does inflammation in the lungs interfere with gas exchange?
Leads to pulmonary edema and vasodilation
Does inflammation in the lungs alter ET, TT, or both?
Both
What measures can sometimes help to prevent pulmonary fibrosis?
Take precautions with particles; promote deep breaths
What are the mechanisms by which a thoracotomy causes pulmonary restriction?
Pain, Incision scars (disuse atrophy)
How can a thoracotomy impair pulmonary gas exchange?
Less deep breaths = decrease alveoli filling
What are the mechanisms by which obesity causes pulmonary restriction? How can this impair pulmonary gas exchange?
Increase WOB due to external load & diaphragm pushed upward which decreases lung volume.
What are some other MSK disorders that could reduce chest wall
Costochondritis, fractured rib, muscle weakness, ankylosis, rheumatoid arthritis
What measures can help to prevent loss of chest wall compliance?
Work on taking deep breaths; weight management; etc.
What are the accessory inspiratory muscles?
SCM, Scalenes, Pec Minor