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Week 3 terminology

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Term
Definition
anoxia   absence of oxygen supply to cells that results in damage or death  
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anticoagulant   drug that is used to prevent clot formation  
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antiplatelet   drug that prevents accumulation of platelets  
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antithrombotic   drug that inhibits clot formation by reducing the coagulation action of the blood protein thrombin  
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atherosclerosis   accumulation of fatty deposits in the walls of arteries  
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artherothrombosis   formation of a blood clot in an artery  
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atrial fibrillation   rapid and uncoordinated contractions  
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atrial flutter   irregular heart beat in which contractions in the atrium exceed the number of contractions in the ventricle  
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cholesterol   dietary lipid normally synthesized by the body  
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depolarization   process where the heart muscle conducts an electrical impulse causing a contraction  
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ectopic   occuring in an abnormal location  
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electrical cardioversion   process of applying an electrical shock to the heart with a defibrillator  
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embolic stroke   stroke caused by an emboli obstruction the flow of blood through an artery  
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hemorrhagic stroke   sudden bleeding in or around the brain  
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hemostasis   process of stopping blood flow  
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HDL   good cholesterol  
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hyperlipidemia   abnormally high llipid levels in the plasma  
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hypoxia   reduced oxygen delivered to cells  
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infarction   area of tissue that has died because of a sudden lack of blood supply.  
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ischemia   deficient blood supply to an area of the body  
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ischemic stroke   ischemia in the brain  
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lipoprotein   protein found in the plasma that transports triglycerides and cholesterol  
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LDL   bad cholesterol  
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mitral valve stenosis   disease of the mitral valve  
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platelets   structures found in blood that are involved in the coagulation process  
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partial thromboplastin time   test given to determine the effectiveness of heparin in reducing anithrombotic activity  
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prothrombin time   test given to determine the effectiveness of warfarin in reducing clotting time  
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refractory period   time between contractions that it takes for repolarization to occur  
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repolarization   period of time when the heart is recharging and preparing for another contraction  
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rhabdomyolysis   breakdown of muscle fibers and release of muscle fiber contents into the circulation  
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stenosis   stiffening and narrowing of the arteries  
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supraventricular tachycardia   heart rate up to 22 beats/min that originates above the ventricles  
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thombolytic   medication used to break up a thrombus or blood clot  
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thrombotic stroke   stroke caused by thrombosis  
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tissue pasminogen activator   naturally occuring thrombolytic substance  
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transient ischemic attack   stroke that typically lasts for a few minutes  
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triglycerides   storage form of energy found in fat tissue muscle  
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ventricular fibrillation   life threatening arrhythmia where the heart beats up to 600 beats/min  
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ventricular tachycardia   ventricles beat faster than 200 beats/min  
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Aneurysm   weakened spot of an artery wall that has stretched or burst  
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