CSEP-CEP Flashcards
What is Myocardial Infarction (MI)
Complete obstruction of blood flow to cardiomyocytes, leading to cardiomyocyte death
S.O.A.P stands for…
Obtaining... Subjective data Objective data Assessment Plan
How does coronary atherosclerosis disease (CAD) start to occur?
Endothelial dysfunction, leading to inflammation/lesions, later attracting macrophages and LDL, which is then solidified by calcium, blood-clotting factors, and fibrous connective tissue - ending with blood flow obstruction
Ischemia
Decreased blood flow to the particular tissue/cells due to obstruction
How are MIs assessed on an ECG?
ST-segment elevation, and T-wave inversion
How do MI occurrence affect ECG after the event?
Pronounced Q-wave disappearance (depending on magnitude and time)
How do MI affect exercise capacity in the long-term?
Decreased capacity with lower cardiac output (medication too, affects capacity)
What are B-blockers’ primary effects?
Decrease heart rate response to exercise (blocks interaction with adrenaline/epinephrine and noradrenalin/norepinephrine)
What are the exercise-related side-effects of non-selective B-blockers?
Inhibition of B2-adrenoceptors (with primary goal being B1), which inhibit glycogenolysis and leading to lower exercise capacity
What should you be aware of with people using vasodilators, ACE/angiotensin inhibitors?
Adequate cool-down to prevent a hypotension episode post-exercise bout
How could diuretics affect a test result?
Potential hypokalemia or hypomagnesemia may be present, leading to mis-representation of heart function
How could central nervous system drugs affect exercise bouts?
By affecting both heart response and blood pressure, possible hypotension, dizziness, and loss of consciousness/fainting (syncope) may occur and require careful monitoring
False positive results vs false negative results
1) incorrect test result because it states a condition/finding that is not present
2) incorrect test result because it fails to state a condition/finding that is present
When would exercise training prescription be modified when using drugs?
When drugs affect heart rate response to exercise, training intensity should reflect the test result using the same drug dose at the same time of day and training be at same time as well
What is revascularization?
It is the method to bringing relief and longevity to those who experience angina/ischemic events by bypassing the stenosis/blockade (I.e via electric mesh)
What is angina?
It is the restriction of blood flow to cardiomyocytes due to plaque, which, at times, lead to uncomfortable feelings/pain during efforts
What is silent ischemia?
Same as angina in physiological terms, but is asymptomatic
What is atrial fibrillation?
The non-rhythmic contraction of the atria, which leads to irregular ventricular depolarization
How would atrial fibrillation affect exercise capacity?
It would decrease capacity due to too high of heart rate for optimal stroke volume to occur, resulting in lowered cardiac output - it may also increase general fatigue due to the higher heart rate on average (heart requiring more)
What types of devices are used to correct for those with a history of life-threatening cardiac arrhythmias?
Pacemaker devices and implantable cardioverter defibrillators
What is chronotropic incompetence?
Inability to increase HR during exercise, which is defined by failing to achieve 85% age-predicted HRmax during a maximal test