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ekg terms
ekg basic terms
| Question | Answer |
|---|---|
| amplitude | abundance,amount,extent,fullness,or size |
| aneurysm | weakening and dilation of an artery |
| angina | left-sised,chest pains brought on by exertion |
| angioplasty | balloon on cardiac catheter inflated to compress plaque against artery walls |
| anterior | toward the front |
| apex | pointed end of the ventricles |
| arrhythmia | absence of rhythm |
| arteriosclerosis | arterial hardening caused by the buildup of atherosclerotic plaque |
| artifact | appearance of electrical activity or waveforms from sources outside the heart. |
| asystole | absence of cardiac activity, cardiac standstill, with systole |
| atherosclerosis | buildup of plaque in the arteries over a period of years. |
| atrium | right or left uper chamber of the heart. |
| augmented lead | unipolar lead, one positive electrode, has very low voltage |
| automaticity | ability of the heart to initiate and maintain rhythm without the nervous system |
| bradycardia | heart rate below 60 |
| cardiac cath | catheter threaded in major artery back to heart through aorta |
| cardiomegaly | enlarged heart |
| cardiomyopathy | diseases of the myocardium |
| conduction system | wiring that initiates and maintain contraction of myocardium |
| conductivity | ability of cardiac cell to transfer impulses to the next cell. |
| contractility | ability of the heart muscle to shorten or reduce in size |
| coronary artery bypass | ischemia or obstruction in the coronary arteries is bypasses with a graft of a vessel |
| depolarization | condition in which the cardiac cell environment becomes positive |
| diastole | period of ventricualr relaxation |
| dysrhythmia | abnormal, irregular, or disturbed heart rhythm |
| ejection fraction | measurement of the fraction of the total amount of blood filling the ventricle that is ejected during the ventricular contraction |
| endocarditis | inflammation of the endocardium |
| embolism | embolus moving through the vascular system becomes lodged in a vessel |
| excitability | response of cardiac cells to electrical stmulus |