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Voc 6/7
| Term | Definition |
|---|---|
| somatic tremor | EKG artifact usually caused by patient tremors or shivering. |
| wandering baseline | EKG artifact in which the normally flat baseline moves up and down across the tracing. |
| Abrade | an electrocardiography, to lightly scrub the outer layer of the skin to remove debris that can interfere with electrode contact. |
| electrical interference | in electrocardiography, a type of artifact caused by the presence of other appliances or equipment in the area surrounding the EKG machine. |
| broken recording | EKG artifact that occurs when the signal is compromised by frayed or faulty lead wires. |
| Dextrocardia | a rare heart condition that causes the heart to develop pointing to the right side of the chest instead of the left side. |
| cardiac conduction system | the pathway of electrical impulses that controls the heart’s pumping action. |
| intrinsic rate | the normal firing rate (expressed in beats per minute) associated with a part of the heart’s electrical conduction system. |
| sinoatrial node | part of the electrical conduction system of the heart, located in the upper part of the right atrium and acting as the primary pacemaker of the heart, with an intrinsic rate of 60–100 BPM; also called the SA node or sinus node. |
| Pacemaker | something that regulates the heart’s contractions; natural pacemakers are part of the cardiac conduction system, with the sinoatrial (SA) node acting as the primary pacemaker when the heart is functioning normally. |
| atrioventricular node | part of the electrical conduction system of the heart, located at the bottom of the right atrium, behind the tricuspid valve, with an intrinsic rate of 40–50 BPM. |
| atrioventricular (AV) junction | part of the electrical conduction system of the heart, located between the AV node and the bundle of His. |
| bundle of His | part of the electrical conduction system of the heart, located in the upper part of the interventricular septum, with an intrinsic rate of 40–50 BPM; also called AV bundle. |
| bundle branches | part of the electrical conduction system of the heart; they divide from the bundle of His and carry the electrical impulse to the walls of the ventricles. |
| Purkinje fibers | part of the electrical conduction system of the heart; they divide from the bundle branches and have an intrinsic rate of 20–40 BPM. |
| Irritable | in reference to the cardiac conduction system, more likely to initiate an electrical impulse at the wrong time or in the wrong location |
| isoelectric line | on an EKG tracing, the straight line between upward and downward movements (also sometimes called the baseline). |
| Wave | on an EKG tracing, movement upward or downward from the isoelectric line; a positive wave moves upward and a negative wave moves downward. |
| Segment | on an EKG tracing, the isoelectric area between two waves. |
Created by:
MyleeJM
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