Waves and Complexes
This wave represents atrial depolarization.
What is a P wave
This is the normal duration of the PR interval.
What is 0.12 to 0.20 seconds?
The number of leads used in a standard 12-lead EKG.
What is 10?
A definition of artifact is this.
What is any distortion of the EKG tracing not caused by the heart.
This rhythm has no P waves, is irregularly irregular and is often fast.
What is atrial fibrillation?
The part of the EKG represents ventricular depolarization
What is the QRS complex?
This is the normal duration of the QRS complex.
What is 0.06 to 0.10 seconds?
The correct anatomical placement of lead V1 is....
What is the 4th intercostal space on the right sternal border.
What is patient movement or muscle tremors or shivvering.
This is a life threatening rhythm that results in no cardiac output and appears to be very chaotic.
What is ventricular fibrillation?
This wave shows ventricular repolarization.
What is the T wave?
This segment represents the time between ventricular depolarization and repolarization.
What is the ST segment?
This issue causes the artifact known as wandering baseline.
What are loose electrodes or deep breathing.
This rhythm shows a wide and bizarre QRS complex and occurs in groups of 3 or more.
What is ventricular tachycardia.
The U wave represents this - if it happens to be visible on the EKG.
What is repolarization of the Purkinje fibers.
When the ST segment is depressed, it can represent this condition.
What is myocardial ischemia?
This can occur due to incorrect lead placement.
What is artifact or misinterpretation.
This artifact is caused by electrical interference.
What is 60-cycle interference or AC interference?
This rhythm has a P wave prior to every QRS complex and a rate of 60 - 100.
What is sinus rhythm.
This condition can cause the T waves to be tall and peaked?
What is hyperkalemia?
When the ST segment is elevated, it can represent this condition.
What is a myocardial infarction?
The correct anatomical placement for lead V6 is this.
What is the 5th intercostal space on the midaxillary line?
These actions can minimize artifacts during the acquisition of EKGs
What are ensuring proper skin prep, secure lead placement or limiting patient movement.
This rhythm looks like a saw-tooth or a picket fence. It does not have any p waves but is typically regular and is defined as a ratio.
What is atrial flutter?