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An electrocardiogram is a recording of the?
Heart's electrical activity
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The AVR, AVL, and AVF leads are called?
Augmented leads, or unipolar leads
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What is the term used to refer to the ECG that is within normal limits?
Normal sinus rhythm (NSR)
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Arrhythmia
Abnormal heart rate, rhythm, and conduction system; also called dysrhythmia.
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The flat horizontal line that separates the various waves is known as the?
Baseline, or isoelectric line
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The most common nonmedical term for a myocardial infarction is?
Hear Attack
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The cardiac stress test (treadmill) is?
Exercise electrocardiography that is dont to determine if the heart is recieving enough blood during exercise
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Wha are your augmented leads?
- Right Arm (AVR)
- Left Arm (AVL)
- Left Foot (AVF)
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What are artifacts?
Unwanted changes in an ECG tracing caused by ovement, machine malfunction, or other factors
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Name the heart condition in which the heartbeat is too rapid, and give the heart rate.
- Sinus Trachycardia
- -100 to 180 beats/min
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A device on the skin that picks up electrical impulses given off by the heart is known as an?
Electrode(s)
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What is the name given to the modified myocardial cells that set the pace of the heart?
SA Node
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Stylus
Heated device that records the heart's activity on heat-sensative graph paper
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ECG
Graphic picture of the heart's electrical activity
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Wandering baseline
Shift on the ECG tracing from the baseline or center of the paper
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Amplifier
Device on the electrocardiograph that magnifies or enarges the heart's electrical impluses so they can be recorded.
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Alternating current
Electrical interference that appears as small, uniform spikes on ECG tracing
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Baseline
Line that separates the various cardiac waves
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Pacemaker
Device that delivers electrical impulses to the heart muscle when the SA node is unable to do so.
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Ventricular Tachycardia
Three or more consecutive PVCs with heart rate exceeding 100 beats per minute.
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U-Wave
Normal, small upward curve that occasionally follows a complete ECG cycle after PQRST; has unknown indication.
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Ischemia
Poor blood supply to body tissue causing a lack of oxygen to that tissue.
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Cardiac Cycle
One heartbeat; one contraction/relaxation phase pf the heart
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Premature Atrial Contraction
Condition in which an electrical impulse in the atria starts before the next expected heartbeat.
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Arrythmia
Abnormal heart rate, rhythm, and conduction system; also called dysrhythmia.
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