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Creado por Alyse Holmes
hace casi 8 años
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systolic pulmonary artery pressure
diastolic pulmonary artery pressure
Mean pulmonary artery pressure
Capillary Pulmonary pressure
Systolic Pressure in R ventricle
Pulmonary wedge pressure estimates
Normal Pulmonary Wedge Pressure
pulmonary vascular resistance
ratio of total systemic vascular resistance to pulmonary vascular resistance
Mean PA pressure
Mean Aortic Pressure
LA pressure
RA pressure
pressure differences from inlet to outlet of pulmonary and systemic systems are (15-5)=10 for pulmonary and (100-2)=98 for systemic circulation which is
describe pulmonary circulation
total resistance of pulmonary circulation is less than 1/10 that of the systemic system
What causes pulmonary circulation to be a low resistance system?
Pulse pressure of pulmonary system
alveolar vessels
extra-alveolar vessels
Lung inflation collapses
lung inflation expands
transmural pressure
resistance of alveolar vessels depends on
Pressure inside alveolar vessels
pressure in alveoli
Increases in lung volume simultaneously
pulmonary vascular resistance is
pulmonary blood flow
PVR =
Increase in perfusion pressure (pulmonary artery pressure) results in
Distention
what is the predominant mechanism for fall in PVR when vascular pressures are high?
What is the primary mechanism for fall is PVR when pulmonary artery pressure is raised from low levels?
when a patient is upright, perfusion Q is greatest
distribution of blood flow os affected by
zone 1
zone 1 =
Zone 2
Zone 3
hypoxic pulmonary vasoconstriction
angiotensin 1
Bradykinin
Serotonin
norepinephrine
Leukotrienes
Prostaglandins E2 and F2 alpha
leukotrienes are generated by
prostaglandins and thromboxane A2
prostaglandins
prostaglandin E2