Cardiac Muscle Dysfunction: Heart Failure

Question 1

What is the prognosis for those with Heart Failure

Answer 1

50% those diagnosed with HF die within 5 years

Question 2

The heart muscle loses its ability to pump effectively and it becomes larger as it tries to compensate

Answer 2

Cardiomyopathy

Question 3

3 things that lead to abnormal stroke volume

Answer 3

Impaired contractility
Increased after load
Impaired ventricular filling

Question 4

Normal ejection fraction

Answer 4

55-75%

Question 5

Normal CO

Answer 5

4-8 L/min

Question 6

If preload is abnormal what can happen

Answer 6

Increased volume in ventricles

Question 7

How does one reduce preload

Answer 7

Diuretic

Question 8

How does one reduce after load

Answer 8

Vasodilator

Question 9

How does one increase inotropy (force)

Answer 9

Beta-agonist

Question 10

Afterload increased with

Answer 10

Increase in arterial vasomotor tone

Question 11

In HF, small increased in afterload can have big effects on

Answer 11

SV

Question 12

Condition in which the heart chamber enlarges due to the stretching of muscle fibers

Answer 12

Dilated cardiomyopathy

Question 13

Condition in which ventricle walls stiffen and lose flexibility

Answer 13

Restrictive cardiomyopathy

Question 14

Condition in which the heart walls thicken, especially in left ventricle. And growth and arrangement of muscle fibers are abnormal

Answer 14

Hypertropic cardiomyopathy

Question 15

A loss of contractility, dilated ventricle, increased LVEDV, and decreased EF is what type of dysfunction

Answer 15

Systolic

Question 16

Impaired filling due to hypertrophy and results from HTN or aortic stenosis

Answer 16

Diastolic dysfunction

Question 17

What would you think if the EF is 0.25

Answer 17

Cardiac dysfunction after a Heart Attack (normal is .55)

Question 18

Clinical manifestations include: marked decrease in exercise tolerance, Celine in functional status, decrease in quality of life

Answer 18

heart failure