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Cardiology

Cardiophysiology

QuestionAnswer
highest resistant in CVS arterioles
largest total cross-sectional and surface area capillaries
veins under low pressure; high portion of blood
arteries deliver oxygenate blood to tissues; high pressure; stressed volume
Systolic pressure hightest arterial pressure during cardiac cycle; measured after heart contracts and blood ejected into arterial system
Diastolic pressure lowest arterial pressure during a cardiac cycle; measured when Heart is relaxed and blood is returning to the heart via veins
Pulse Pressure determinant of Stroke Volume
what can cause increase in PP aging
Pulse pressure calculations systolic - diastolic
arterial pressure is measurement of Left arterial pressure [PCWP]
Ejection fraction measured Stroke volume / EDV
what is normal EF 55%
Preload measured by EDV and RA pressure
Afterload measured by LV = aortic pressure : increase in aortic pressure = Increase in afterload of LV RV = pulmonary artery pressure; increase in pulmonary artery pressure causes increase in afterload in RV
what increases preload venous dilaters
what decreases afterload vasodilators
Created by: Roshani