Lung Heart-waks Flashcards
Ascites is associated with which type of congestion?
Systemic congestion of venous system
Pulmonary Venous HTN characteristics
Post capillary
Pap 25 or greater at rest (30 or greater w/ exercise)
Pcwp/LVED greater than 15 mmHg
Pulmonary Artery HTN characteristics
Pre capillary Pap 25 or greater at rest ( 30 or greater w/exercise) Pcwp/LVED 15 or less Pvri 3units/m^2 or greater NO Left sided Heart DISEASE
Perfusion pressure
Pressure gradient across vascular bed
When standing, Zone 1 of the lungs has the ______ blood flow
Lowest
When supine, Zone 1 of the lungs has the ______ blood flow
Equal
Pulmonary blood flow is affected by?
Changes in Cardiac Output
Pleural/Alveolar Pressure
Pulmonary circulation normally in a state of ?
Mild vasodilation
Exercise affects pulmonary blood flow by?
Using recruitment/distension to decrease net pulmonary vascular resistance
What happens when exercising at high altitude?
Hypoxia leads to increased pulmonary artery pressure and higher pulmonary vascular resistance.
To alleviate, go to a lower altitude OR increase oxygen supply
Causes of pulmonary vein HTN (post capillary)
Left Heart Disease ---- Valvular heart disease Cardiomyopathies Tumors