Answer and Explanation 10

10.   C is the correct answer.  With hyperkalemia you get reduction in the size of the P Wave and development of T Waves.  Severe hyperkalemia leads to widening the QRS complex .  In RVH you may see Right Axis Deviation, Tall R waves in lead V1, slight increase in QRS duration, and and may see right bundle branch pattern in lead V1.  There is no ST elevation so there is no infarction.

Question 10

10.  Please interpret the EKG below:

A.  Right Ventricular Hypertrophy

B.  Hypokalemia

C.  Hyperkalemia

D.  Anterior Lateral Infarction

Answer and Explanation 9

9.  C is the correct answer.  This is Wolf Parkinson White Syndrome.  This is demonstrated by the delta waves seen in leads I, AVL, and leads V2-V6.  There is no evidence of Junctional Rhythm because the P Waves are normal. There is no sick sinus syndrome.  All of the P waves conduct through.  Brugada Syndrome because there is no J point elevation by negative T wave deflection.  This is usually observed in leads V1-V3.

Question 9

9.  Please interpret the EKG below

A.  Junctional rhythm

B.  Brugada Syndrome

C.  Wolf Parkinson White Syndrome

D.  Sick Sinus Syndrome

Answer and Explanation 8

8.  D is the correct answer.  This a a narrow complex tachycardia. Ventricular tachycardia is a widened QRS tachycardia.  Supraventricular Tachycardia and A-Flutter are more of a regular rhythm.  This 12 lead demonstrates an irregular irregular rhythm which is consistent with A-Fib with RVR.

Question 8

8.    Interpret the 12 lead EKG below:

A.  Supraventricular Tachycardia

B.  Ventricular Tachycardia

C.  Atrial Flutter with Rapid Ventricular Response

D.  Atrial Fibrillation with Rapid Ventricular Response

Answer and Explanation 7

7.  B is the correct answer.  This is a second degree AV block type two.  There is a characteristic lengthening of the PR interval greater than 0.20 seconds until the QRS complex is dropped.  Third degree block is complete AV dissociation.  The P waves have equal distance between them as do the QRS complex.  Second degree AV block type II is when there is no lengthening of the PR interval the the QRS complex just drops.