Arrythmia EKG Findings

Question 1

Sinus Tachycardia

Answer 1

Regular, fast HR

Usually none, maybe B-blockers

Question 2

Sinus Bradycardia

Answer 2

Regular, Slow HR

None, atropine

Question 3

First Degree AV Block

Answer 3

PR interval longer than 5 boxes

No treatment

Question 4

Second Degree AV Block (Mobitz 1)

Answer 4

Increasing length of PR interval until one skips.

No treatment

Question 5

Second degree AV Block (Mobitz 2)

Answer 5

Some P waves do not conduct

Often no treatment, may pace

Question 6

Third Degree AV Block

Answer 6

No connection between P and R

Pacing if ventricular rate or BP are too low

Question 7

Atrial Flutter

Answer 7

Sawtooth, pulse may be regular or irregular

Anticoagulants, Rate control, Cardioversion, Ablation

Question 8

Atrial Fibrillation

Answer 8

Irregularly irregular, no P waves

Anticoagulants, Rate control, Cardioversion, Ablation

Question 9

Atrial tachycardia

Answer 9

Abnormal P waves, narrow QRS, fast HR

Adenosine, vagal maneuver, B blocker, verapamil or diltiazem

Question 10

Junctional Rhythm

Answer 10

No P waves (or retrograde), Regular, narrow QRS.

Typically no treatment needed

Question 11

Premature atrial contraction

Answer 11

Premature beat, preceded by abnormal P wave, narrow QRS

Question 12

Premature Ventricular Contraction

Answer 12

Wide QRS, No P-wave

Usually none, maybe B-blockers

Question 13

Ventricular tachycardia

Answer 13

Wide abnormal QRS, No P wave, can involve reentry

Amiodarone, lidocaine, cardioversion