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10 Cards in this Set
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contraindications of Exercise TEst
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stroke
MI unstable angina wheezing HF, etc |
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In dynamic exercise....
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HR increases
Diastole gets shorter SV increases CO increases SVR decreases increase in oxygen extraction CO redistribution from inactive areas to active areas |
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normal vs CAD ex. test
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Normal: HR goes higher, SBP goes higher, exercise longer, stop bc muscle ache, ST shifts are rare
CAD: stop bc chest pain SOB, or fatigue, ST seg shifts are more common but not everyone |
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REsting BF
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before exercise
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peak or maximum flow
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during maximum stress
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Stress ECG reading
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CAD: ST segmetn lower (depression), elevation can also occur, reflect ischemia 10:1 dep to elevation
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Bayesian Theorem
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postive test: likely to be false pos with a low pre test liklihoood
negative test; likely to be false neg in pt with high pre test liklihood of disease |
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METS
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measure of how much O2 body uses
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imaging methods combined with stress tests
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Nucelar testing
Echo MRI |
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Pharmocologic stress test w/imaging for obese or non exercise pts
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vasodilators, if CA blocked, flow wont increase; more powerful than exercise
inotropes(dobutamine): used in pateints with bronchospasm from vasodilator use |
