Afterload

Question 1

Afterload is

Answer 1

the amount of resistance that the ventricle have to overcome to eject the volume/load of blood in the ventricles; the forces opposing ventricular ejection; (e.g against aortic pressure = left side afterload); the greater the radius of ventricle = the greater the volume or systemic vascular resistance = the greater the afterload

Question 2

After load Right Side

Answer 2

think Pulmonary Vascular Resistance or pulmonary arterial pressure

Question 3

Afterload Left Side

Answer 3

think Systemic vascular resistance or systemic arterial pressure; the greater the SVR = the greater the BP

Question 4

Afterload and Poiseuille’s Law

Answer 4

the greater the diameter and length = the LESS the resistance; INVERSE RELATIONSHIP

Question 5

Afterload variables

Answer 5

arterial tone, valve competency; autonomic/sympathetic stimulation of catecholamine; hormones; dz conditions anaphylaxis or sepsis; medication