EKG certification Certification FREE EKG Certification Interpretation Question and Answers 3

Question 1

A patient's EKG reveals a wide QRS complex (>120 ms) with an RSR' pattern in lead V1 and a wide S wave in leads I and V6. What is the most likely diagnosis?

Accepted Answer

Right bundle branch block

Answer

Left bundle branch block

Answer

Ventricular tachycardia

Answer

Wolff-Parkinson-White syndrome

Question 2

Which EKG finding is characteristic of Wolff-Parkinson-White syndrome?

Accepted Answer

Shortened PR interval with delta wave

Answer

Prolonged QT interval with notched T waves

Answer

Epsilon wave in right precordial leads

Answer

Osborn wave following the QRS complex

Question 3

An EKG shows a regular wide-complex tachycardia at 180 bpm with AV dissociation. What is the most likely rhythm?

Accepted Answer

Ventricular tachycardia

Answer

Supraventricular tachycardia with aberrancy

Answer

Atrial flutter with variable block

Answer

Torsades de pointes

Question 4

On a 12-lead EKG, which finding suggests left ventricular hypertrophy using the Sokolow-Lyon criteria?

Accepted Answer

S wave in V1 plus R wave in V5 or V6 greater than 35 mm

Answer

R wave in aVL greater than 11 mm

Answer

R wave in lead I plus S wave in lead III greater than 25 mm

Answer

QRS duration greater than 120 ms in limb leads

Question 5

A patient's rhythm strip shows a progressively lengthening PR interval followed by a dropped QRS complex, then the cycle repeats. What is this rhythm?

Accepted Answer

Second-degree AV block Type I (Wenckebach)

Answer

First-degree AV block

Answer

Second-degree AV block Type II

Answer

Third-degree AV block

Question 6

Which EKG change is most commonly associated with acute pericarditis?

Accepted Answer

Diffuse ST elevation with PR depression

Answer

ST elevation isolated to contiguous leads

Answer

Pathological Q waves in anterior leads

Answer

Tall R waves in V1 and V2