Pulmonary Circulation Flashcards
How is vascular resistance calculated
R = delta P over Q
What happens to pulmonary resistance when CO increases
Decreases (opens more capillaries)
Which is higher PA pressure or systemic
Systemic
Zone 1 of the lung breakdown of pressures
PA>Pa>Pv
Sone two of th Leung breakdown of pressures
Pa>PA.Pv
Zone three of the lung breakdown of pressures
Pa>Pv>PA
Does pulmonary vascular resistance increase at high or low lung volumes
Both
If a marble were aspirated into a bronchiole branch, would this become a shunt or a dead space
Shunt
If blood is clogged to a bronchiole branch would this become a shunt or dead space
Dead space
What happens to blood vessels when alveoli are hypoxia
They become constricted, pulmonary hypertension, what good is it to send blood to where there is no air
Pulmonary hyertension is associated with
Right sided heart failure
NO is used to treat pulmonary hypertension because it
Increases cGMP at low doses. Dialates
What can be expected in pulmonary arterial pressure a person who has been exposed to high altitude for six months
Increased pulmonary arterial pressure
Acute hyperkalemia is associated with salt or freshwater drowning
Fresh
