Shock part 2 Flashcards
Total peripheral resistance is largely regulated by ________of the blood vessels
radius
How does blood pressure tank?
Cardiac output goes down or total peripheral resistance will go down
Cardiac output goes down because heart rate will go down sometimes heart rate might be super high
If heart rate beats too much in tachycardia then heart won’t have enough time to fill with blood so cardiac output goes down
stroke volume might go down
How does total peripheral resistance go down?
If you increase radius of the blood vessels then what happens?
total peripheral resistance goes down
What makes heart rate go down what is the condition?
bradycardia
What makes heart rate go super high?
tachycardia
What is stroke volume?
end diastolic volume-End systolic volume
volume of blood ejected from LV with each beat
stroke volume
pressure that stretches the wall during diastole=__________=EDV(end diastolic volume)
preload
Frank-Starling law says increase stretch means increase ______________
contractile force
Increase preload—>increase stroke volume and increase cardiac output
decrease preload decrease what?
decrease stroke volume and decrease cardiac output
delete card
When can preload be super low?
When blood volumes goes down
When there is too much ___________(decrease vascular tone)
because of decrease in venous return
vasodilation
