Lung Heart-waks Flashcards
(11 cards)
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