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22 Cards in this Set
- Front
- Back
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amplifier |
a device on an electrocardiograph that enlarges the ECG impluses |
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atrial depolarization |
the excitement and contraction caused by the SA node at the beginning of the cardiac cycle
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augumented |
refers to leads 4, 5, and 6 of the standard 12-lead ECG tracing; these leads are of different voltage
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countershock |
a high-intensity, short-duration electric shock applied to area of the heart, resulting in total cardiac depolarization
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current |
happening now; of the present time; the latest information
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defibrillator |
a device designed to deliver an electric shock to a patient, in an effort to stop pulseless ventricular fibrillation or ventricular tachycardia
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echocardiography |
ultrahigh frequency sound waves directed toward the heart to evaluate function and structure of the organ
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electrocardiogram |
a graphic record of the electric currents generated by the heart; a tracing of the heart action
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electrocardiograph |
a machine for obtaining a graphic recording if the electrical activity of the heart
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galvanometer |
an instrument that measures current by electromagnetic action |
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impulse |
a charge transmitted through certain tissues, especially nerve fibers and muscles, resulting in physiologic activity
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interference |
confusion of desired signals caused by undesired signals, as in artifacts on an ECG
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interval |
time between events; space. On an ECG, the period that includes one segment and one or more wave ie; P-R interval.
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limbs |
refers to the arms and legs |
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precordial |
pertaining to that area of the chest wall over the heart for the placement of ECG chest leads
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Purkinje |
network of fibers found in the cardiac muscle that carries the electrical impulses resulting in the contraction of the ventricles
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repolarization |
reestablishment of a polarized state in a muscle or nerve fiber following contraction or conduction of a nerve impulse, On a
ECG the time of recovery before another contraction |
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segment |
a part or section of an organ or a body. The portion of an ECG between two waves.
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somatic |
Pertaining to the body as distinguished from the mind; physical. Pertaining to the structures of body wall such as skeletal muscles
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stylus |
a pen; the ECG writer
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trace |
the production of a sketch by means of a stylus passing over the paper, as in electrocardiography
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voltage |
a measurement of electromotive force. |
