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EKG & Cardio

unwanted external event occurring in an EKG tracing not associated with the heart function artifact
the machine that records an electrocardiogram: electrocardiograph
also known as gain is the degree of change in an EKG tracing, it is represented by the vertical axis amplitude
Recording of electrical current involving both a positive and negative pole bipolar
recording of one location or one pole is: unipolar
A unipolar recording that requires assisting in magnifying the tracing by drawing from other poles is: augmented
Located on the chest in front of the heart precordial
this is the first wave in the cardiac cycle representing atria depolarization P Wave
Asystole: contraction depolarization
the second wave in the cardiac cycle representing ventricular depolarization is: QRS wave
Systole: relaxation is: Repolarization
the third wave in the cardiac cycle representing ventricular repolarization T wave
A collection of fibers that conduct the electrical impulses from the AV node to the ventricular septum is: bundle of HIS
the finger like projections that spread through the ventricular muscle and initiate ventricular contraction are: Purkinje fibers
The length of time from the beginning of atrial depolarization to the beginning of ventricular depolarization is: P R interval
The length of time from the beginning of the ventricular depolarization to ventricular depolarization is: QT interval
The process of recording an electrocardiogram is: electrocardiography
The universally acceptable speed of the tracing and gain (height) used for accurate interpretation of the tracing is: standardization
Muscle movement causing irregular spike in an EKG tracing is: somatic tremor
60 cycle interference; an artifact in the EKG tracing caused by electrical interference is: alternating current AC interference
Inconsistency in the baseline location on the EKG tracing likely caused by poor lead contact or skin placement is: wandering baseline
A break in the tracing usually caused by a disconnected or broken lead is: interrupted baseline
Also known as dysrhythmia: a change from a normal EKG rhythm: arrhythmia
The natural pacemaker of the heart located in the upper right atrium is: sinoatrial node, SA Node
An upward curvature of waves in an EKG tracing is: positive deflection
A downward curvature of waves in an EKG tracing is: negative deflection
The secondary pacemaker located at the junction of the atria and ventricles is the: Atrioventricular node, AV node
Often referred to as Holter monitoring: an EKG conducted over a period of time while the patient resumes normal activities is called: ambulatory monitoring
Created by: CBohlander



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