Term
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Definition
| Small, battery-operated device tat helps the heart beat in regular rhythm. |
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Term
| Paroxysmal atrial tachycardia |
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Definition
| sudden onset of tachycardia measuring 150 to 250 bpm |
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Term
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Definition
| instrument used in a pulmonary function test to measure breathing capacity |
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Term
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Definition
| device that records the percentage of oxygen in the blood after a light source passes through arterial blood. |
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Term
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Definition
| no measurable activity. the heart is in ready state |
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Term
| premature atrial contraction |
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Definition
| when an electrical impulse starts before the next expected beat |
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Term
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Definition
| test to assess a patients lung function |
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Term
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Definition
| noninvasive test that measures the amount of oxygen in a patients blood |
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Term
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Definition
| fibers that form the right and left branches of the bundle of his and extend along the outer walls of the ventricles, causing them to contract |
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Term
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Definition
| rest phase of the ECG cycle |
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Term
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Definition
| lead 2 recording on ECG that shows the hearts rhythm |
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Term
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Definition
| device on the electrocardiograph that magnifies or enlarges the hearts electrical impulses so they can be recorded |
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Term
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Definition
| abnormal heart rate, rhythm and conduction system |
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Term
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Definition
| unwanted changes in ECG tracing caused by movement, machine malfunction or other factors |
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Term
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Definition
| knot of specialized cells in the lower portion of the right atrium that produces the hearts electrical impulses |
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Term
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Definition
| leads that measure cardiac activity from one electrode on the body at a time. |
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Term
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Definition
| line that separates the various cardiac waves |
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Term
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Definition
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Term
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Definition
| branches of cardiac fibers that receive electrical impulses from the bundle of his |
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Term
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Definition
| leads that measure in only one direction |
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Term
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Definition
| discharge of electrical energy that causes contractions |
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Term
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Definition
| graphic picture of the hearts electrical activity |
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Term
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Definition
| machine that records the electrical activity of the heart |
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Term
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Definition
| non-invasive procedure used to detect the heart's electrical activity |
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Term
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Definition
| device made of a conductive material to pick up the electrical activity of the heart |
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