Ch 9 - Cardiac Rehabilitation Flashcards
What should all MI survivors receive?
Cholesterol lowering agent
Aspirin
Beta-blocker
What does aspirin reduce the risk of?
Subsequent MI, stroke, and death from cardiovascular causes by about 25%
What do Beta-blockers reduce the risk of?
Reduce mortality
and reinforce after MI and may be more effective in women than in men
What are non modifiable risk factors of heart disease?
Age
Male gender
Family history of CAD
Past history of CAD, PVD, CVA
What are modifiable risk factors of heart disease?
Hypertension Cigarette smoking Hyperlipidemia Diabetes mellitus Obesity Sedentary lifestyle Type A personality
Describe the 3 year survival rate post-MI in patients who do cardiac rehab vs those who do not.
Rehab: 95%
None: 65%
28% red in recurrent MI
What age do most MI’s occur?
50% of MI occurs in people under age 65
Describe phase I of cardiac rehab.
During acute inpatient hospitalization
Can last 1-14 days
Describe phase II of cardiac rehab.
Supervised outpatient cardiac rehab lasting 3 to 6 months, length determined by risk stratification
Describe phase III/IV of cardiac rehab.
Maintenance phase in which physical fitness and risk factor reduction are accomplished in a minimally supervised or unsupervised setting
What is the most closely monitored phase of cardiac rehabilitation?
Phase II
Immediate outpatient period
What are the two components of phase III cardiac rehab?
Intermediate and maintenance.
Describe the intermediate stage of cardiac rehab.
Follows immediate outpatient cardiac rehabilitation when the patient is not intensely monitored and/or supervised but is still involved in regular endurance exercise training and lifestyle change
What does Total oxygen consumption (VO2) represent?
Oxygen consumption of the whole body and corresponds to the work of the peripheral skeletal muscles rather than myocardial muscles
What is Aerobic capacity (VO2 max)?
Measure the maximum oxygen consumption that an individual can achieve during exercise expressed the milliliters of O2 consumed per kilogram of body weight per minute (mL O2/kg/min)
How can Aerobic capacity (VO2 max) be tested?
Treadmill or leg cycle ergometer testing
What is Myocardial oxygen consumption (MVO2)?
Actual oxygen consumption of the heart measured directly with cardiac catheterization
How can Myocardial oxygen consumption (MVO2) be estimated in a clinical setting?
Estimated MVO2 = rate pressure product (RPP) = SBP × HR
What is a Metabolic equivalent (MET)?
Ratio of working metabolic rate to basal (resting) metabolic rate
What does 1 Metabolic equivalent (MET) equal?
3.5 mL O2 consumed/kg of body weight/minute
1 MET = Energy consumption while at basal metabolic rate (seated rest)
What are outcomes of cardiac rehab?
- Improved Exercise Tolerance
- Improved Sx
- Improved Blood Lipid Levels
- Red Cigarette Smoking
- Improved Psychosocial Well-Being and Stress Red
- Red Mortality
- Safety
When should patients be mobilized after cardiac surgery?
As rapidly as possible to prevent decubitus,
pneumonia, and thromboembolism
What MET should rehab be during the acute period in coronary care unit?
Activities of very low intensity (1 to 2 METs)
What MET should rehab be during the subacute period in telemetry unit/medical ward?
Activities or exercises of intensity (3 to 4 METs)
What is the energy cost of low grade ambulation?
– 1 mph (slow stroll) = 1.5 to 2 METs
–2 mph (regular slow walk) = 2 to 3 METs
–Propelling wheelchair = 2 to 3 METs
What is Graded Exercise Testing (GXTs)?
Tests assess the patient’s to tolerate increased physical stress