Intro to EKGs
The wave that represents atrial depolarization
What is the P wave?
The R-R intervals are consistent, one p wave present, and rate between 60-100 bpm
What is normal sinus rhythm?
Lead I and AVF are both positive
What is normal axis?
A diphasic P wave represents this
What is atrial hypertrophy?
The basis for recognizing and diagnosing an MI and follows the pattern ischemia, injury, necrosis
What is the infarction triad?
The QRS complex represents this
What is ventricular depolarization?
This rhythm is recognizable with a saw tooth pattern
What is atrial flutter?
Leads I and AVF are both negative
What is ERAD?
When the terminal component of the diphasic P wave is larger than the initial
What is LAH?
Indicates this when there is T wave inversion V2-V6
What is ischemia?
This repolarization is not seen on an EKG
What is atrial?
No identifiable P waves, irregular R-R intervals, normal QRS complex
What is atrial fibrillation?
The axis someone may be in that has significant abdominal obesity or a pregnant woman
What is LAD?
An inverted T wave in V1 indicates this
What is RVH?
A lateral infarction will occur do to an occulsion of this artery.
What is the circumflex artery?
The amount of electrodes needed for a stress test
What is 10?
This rhythm has a P and P prime with the heart rate being above 100 bpm
What is multifocal atrial tachycardia?
The axis someone may be in that has experienced a MI
What is RAD or ERAD?
When the P wave has an amplitude greater than 2.5mm in any limb lead
What is RAH?
Classified as large R waves with ST depression in leads V1 and V2
What is a posterior infarction?
This allows communication from one myocyte to the next
A sudden onset of 3 or more PVCs in a row
What is paroxysmal ventricular tachycardia?
The degrees of the mean QRS vector if someone is in LAD with the most isoelectric lead being II
What is -30 degrees?
When the ST segment has a long and gradual downslope and then a sharp return to baseline in leads V5 or V6
What is LVH?
Associated with LAD, with a significant Q wave in lead 1 and a large S wave in lead III
What is an anterior hemiblock?