EKG Findings

Question 1

Premature Ventricular Contraction

Answer 1

Early, wide bizarre QRS; no p wave seen

Question 2

Premature Junctional Complex

Answer 2

Narrow QRS w/ no P wave or upside down P wave

Question 3

Multifocal Atrial Tachycardia

Answer 3

Rapid Irregular rhythm > 100bpm; at least 3 distinct P wave morphologies

Question 4

Atrial Flutter

Answer 4

Regular, Sawtooth pattern, Narrow QRS

Question 5

Atrial Fibrillation

Answer 5

No discernable P waves; irregularly irregular pattern of QRS complexes

Question 6

Right BBB

Answer 6

V1: Wide upward RsR’
V5/V6: Slurred S wave

Question 7

Left BBB

Answer 7

V1: Wide downward QRS
V5/V6: Double notch

Question 8

Right Ventricular Hypertrophy

Answer 8

Upright narrow QRS in V1

Question 9

Left Ventricular Hypertrophy

Answer 9

Narrow QRS; Sum of V1/V2 + V5/V6 = 35mm or greater

Question 10

Right Atrial Enlargement

Answer 10

Lead II: Tall p wave > 2.5mm
V1: Biphasic P wave w/ initial portion larger

Question 11

Left Atrial Enlargement

Answer 11

Lead II: m shaped p wave > 0.12sec
V1: Biphasic P wave w/ larger terminal portion