Cardiac Muscle Dysfunction Flashcards
T/F Cardiac Muscle Dysfunction is the most common cause of congestive heart failure
True
Name 3 common causes of cardiac muscle dysfunction
- HTN
- CAD
- Dys-Arrhythmia
- Cariomyopathy
- Renal Insufficiency
- Heart valve dysfunction
- Pericardial effusion
- PE
- Pulmonary HTN
- SCI
- Age
HTN leads to which sided ventricular hypertrophy?
Left
Renal insufficiency leads to what heart dysfunction?
CHF due to fluid overload
Pulmonary hypertension leads to which sided ventricular failure?
Right, increases afterload
Pulmonary embolism leads to which sided ventricular failure?
Right, leads to hypoxemia
What is the 2nd most common cause of CMD?
CAD
CAD leads to left, right or both sided ventricular dysfunction
either side or both
___ is defined as impaired cardiac muscle contraction and relaxation
cardiomyopathy
Choose hypertrophic/dilated/restrictive: diastolic dysfunction
hypertrophic
Choose hypertrophic/dilated/restrictive: enlargement of all cardiac chambers?
dilated
Choose hypertrophic/dilated/restrictive: rigid ventricular walls
Restrictive
Choose hypertrophic/dilated/restrictive: diastolic dysfunction
both hypertrophic and restrictive
Choose hypertrophic/dilated/restrictive: systolic dysfunction
dilated
Choose hypertrophic/dilated/restrictive: thickened left ventricular walls
hypertrophic
Choose hypertrophic/dilated/restrictive: most common
dilated
Choose hypertrophic/dilated/restrictive: risk of sudden death sudden death in young athletes
hypertrophic
Choose hypertrophic/dilated/restrictive: causes are long term alcohol abuse, systemic HTN, smoking, pregnancy
dilated
Choose hypertrophic/dilated/restrictive: causes are genetic
hypertrophic
Choose hypertrophic/dilated/restrictive: causes are myocardial fibrosis, ventricular hypertrophy, infiltrate
restrictive
Choose hypertrophic/dilated/restrictive: marked by scarring of the ventricles resulting in impaired diastolic filling
restrictive
Choose hypertrophic/dilated/restrictive: excessive left ventricular hypertrophy
hypertrophy
Pericardial effusion will result in a decrease in which volume?
Stroke volume
T/F Pericardits can lead to pericardial effusion
True
Pulmonary embolism increase work for right or left ventricle?
Right
An abnormal pulmonary arterial pressure is above what number?
> 25mmHg
>20mmHg in patients with COPD
Name three physiological changes that occur in the elderly’s cardiovascular system
- Decreased CO
- Decreased vascular elasticity
- Increased HTN
- Diastolic Dysfunction
- Impaired ventricular filling
- decreased twitch force of cardiac muscle
- Increased systolic arterial pressure
- Decreased aortic distensibility
9.