Class 13

Question 1

Increased Venus return will do what to preload?

Answer 1

Increase it

Question 2

Approximately 70% of the ventricular filling is through what kind of filling?

Answer 2

Passive feeling

Question 3

The ventricular EDV is a function of what three parameters?

Answer 3

1) ventricular filling pressure
2) Ventricular filling time
3) Ventricular compliance

Question 4

When there is a higher pressure gradient, is there a higher or lower venous return?

Answer 4

Fire

Question 5

Ventricular filling time and EDV are positively or negatively related?

Answer 5

Positively

Question 6

With an increase in HR, diastolic period will increase or decrease more than that of systolic?

Answer 6

Decrease

Question 7

Any increase in ventricular compliance will increase the overall what?

Answer 7

Ventricular volume or EDV

Question 8

What kind of system is the cardiovascular system?

Answer 8

A closed system

Question 9

Venous return is equal to what in the steady state?

Answer 9

Cardiac output

Question 10

One flow is continuously increasing, write atrial pressure will drop to what kind of value, and why?

Answer 10

A negative value, due to outflow is so high (vacuum)

Question 11

Mismatch between output and return in the RAP will create what?

Answer 11

A suction within the right atrium, negative value

Question 12

When will the venous return ever be at zero?

Answer 12

In cardiac arrest, when there is no blood flow

Question 13

Mean systemic filling pressure is a function of what two things?

Answer 13

1) fluid volume within the cardio system
2) Overall compliance of the entire system 

Question 14

Lower the overall compliance, higher or lower the MSFP

Answer 14

Higher

Question 15

An increase in CO and a decrease in RAP will lead to an increase or decrease in venous return?

Answer 15

Increase

Question 16

What is the blood pressure in the thoracic vena cava in the proximity of the right atrium?

Answer 16

Central venous pressure or CVP

Question 17

What does CVP effect?

Answer 17

Right ventricular filling and stroke volume

Question 18

Any increase in the central Venus volume will increase or decrease the central venous pressure?

Answer 18

Increase

Question 19

Any decrease in a central venous compliance will increase or decrease the CVP?

Answer 19

Increase

Question 20

An increased blood volume or transfusion, generates a higher or lower CVP the normal?

Answer 20

Higher

Question 21

A decreased blood volume or hemorrhage, generates a higher or lower CVP than normal?

Answer 21

Lower

Question 22

Vasodilation or increase in blood flow will do what to CVP?

Answer 22

Generate a higher CVP

Question 23

Vasoconstriction or decrease in blood flow will do what to CVP?

Answer 23

Lower CVP

Question 24

Five factors that increase CVP through compliance or blood volume:

Answer 24

• decrease in cardiac output\heart failure
• Increase in fluid retention\renal failure
• Going from standing to laying
• arterial dilation
• muscle contraction

Question 25

How can you increase myocardial contractility?

Answer 25

Increase sympathetic stimulation

Question 26

Sympathetic stimulation causes a decrease in what?

Answer 26

Left and right atrial pressure