[21] Electrocardiogram Flashcards
Location of the V3-V4 Leads
Anterior
Location of the V5-V6 Leads
Lateral
Location of the II, III, AVF Leads
Inferior
Normal PR Interval
0.12-0.20s
Normal QRS
<0.12s
How many small squares should there be to be considered hypertrophy
> 35 small squares
What does Left Atrial Enlargement look like in the ECG?
Lead II Notched P (wider than 3 small squares) Lead V1 Inverted R
What does Right Atrial Enlargement look like in the ECG?
Lead II Peaked P (higher than 2.5 small squares) Lead V1 Upright R
T Wave Inversion Points to?
Ischemia
ST Elevation Points to?
Infarction
Rabbit Ear QRS Points to?
LBBB
Widened QRS Points to?
RBBB
Hypercalcemia presents with what in ECG?
Shortened QT Segment
Hypocalcemia presents with what in ECG?
Prolonged QT Segment
Hyperkalemia presents with what in ECG?
Peaked T > 10 small squares
Hypokalemia presents with what in ECG?
Flat T U Wave
Missing P waves before QRS Complex indicates?
Atrial Fibrillation
First Degree AV Block ECG Manifestation
Prolonged PR Interval (>0.2s)
Differentiate Second Degree AV-Block Mobitz Type I and II
Type I: Progressive increase in PR interval and sudden blockage Type II: PR interval is constant and then a sudden blockage occurs
Identify
Premature Atrial Contraction
Identify
Ventricular Tachycardia
Identify
Ventricular Fibrillation
Identify
1st Degree AV Block
Interpret
2nd Degree Block Mobitz Type I
