CV PHYSIO II

Question 1

inotropy and chronotropy

Answer 1

cardiac B1

Question 2

vasoconstriction and BP

Answer 2

vascular A1

Question 3

vasodilation and bronchodilation

Answer 3

vascular B2

Question 4

because oxygen extraction is already high, increases in myocardial VO2 must be accompanied by?

Answer 4

increases in CBF

Question 5

driving force for myocardial blood flow is? controlled by?

Answer 5

systemic arterial pressure

local metabolic mechanisms

• adenosine, H+, NO
• vasodilation

Question 6

myocardial infarctions occur where?

Answer 6

subendocardial layers of the LV

Question 7

associated with a
generalized, severe reduction in blood supply to the tissues

Metabolic needs of the tissues are not met

Hypotension, decreased mentation/LOC, acidosis, organ failure

what is this?

Answer 7

shock

Question 8

what is CO dependent on?

Answer 8

heart rate
preload
afterload
contractility

Question 9

pulmonary embolism and cardiac tamponade are examples of what kind of shock?

also, tension pneumothorax

Answer 9

obstructive shock

Question 10

in obstructive shock, low CO is not related to hypovolemia, T/F?

Answer 10

true

Question 11

BP and CO compromise is indicated in what type of shock?

Answer 11

circulatory shock

Question 12

decreased preload

inadequate cardiac filing leads to decreased SV and decreased CO

Answer 12

hypovolemic shock

Question 13

decrease in blood pressure during hemorrhagic shock present as what class?

Answer 13

class III

Question 14

myocardial dysfunction affecting contractility, heart rate and preload is what type of shock?

Answer 14

cardiogenic shock

Question 15

decreased SVR, CO may be reflexly increased, after load affected; this is what kind of shock?

Answer 15

distributive shock