Answer 40

40.  Choice D is the correct answer.  There is an positive deflection of the QRS complex in both leads I and avF which indicates a normal axis.  Extreme right axis deviation has a negative deflection of both leads I and avF.  Right axis deviation has a negative deflection of the QRS complex in lead one and a positive deflection in lead avF.  Left axis deviation has a positive deflection of the QRS complex in lead  I and negative deflection of lead avF.

Question 40

40.  Please choose the correct interpretation of the EKG listed below:

A.  Right Axis Deviation
B.  Left Axis Deviation
C.  Extreme Right Axis Deviation
D.  Normal Axis

Answer 39

39.  Choice D is the correct answer.   Ventricular fibrillation comes from multiple ectopic foci firing from within the ventricle so there is in irregular baseline.  Ventricular tachycardia comes from one ectopic focus so there is an irregular wide complex tachycardia.  Torsades has a winding up and down appearance to it.  Asystole is a simple flat line.

Question 39

39.  Please interpret the EKG strip listed below:

A.  Asystole
B.  Torsades de Pointes
C.  Ventricular Tachycardia
D.  Ventricular Fibrillation

Answer 38

38.  Choice D is the correct answer.  There is T wave inversion in leads V2-V5 which is consistent with anterior ischemia.  There is no ST elevation so choice A and choice are incorrect.  There is no ST depression or T wave inversion in leads II, III and avF so choice D is incorrect.

Question 38

38.  Please interpret the EKG listed below:

A.  Inferior Infarction
B.  Inferior Ischemia
C.  Anterior Infarction
D.  Anterior Ischemia

Answer 37

37.  Choice B is the correct answer.  Sinus arrhythmia the pacemaker still originates from the SA node but the pacemaking activity is irregular varying with inspiration and expiration.  Sinus block is when an unhealthy SA node quits pacing activity for at least one complete cycle.  Premature atrial contraction is when the P wave occurs earlier than expected.  First degree AV block is when there is a prolonged PR interval and no dropped QRS complexes.

Question 37

37.  Please identify the abnormality seen on the EKG listed below:

A.  Sinus block
B.  Sinus arrhythmia
C.  First degree AV Block
D.  Premature atrial contraction

Answer 36

36.  Choice B is the correct answer.  Atrial flutter is characterized by a regular saw tooth pattern between QRS complexes because the ectopic focus is coming from the same area in the atria.  Atrial fibrillation has an irregular baseline because the ectopic focus comes from multiple areas in the atria.  Paroxysmal atrial tachycardia is narrow complex tachycardia with a rate over 150 beats per minute.  Wandering atrial pacemaker the P wave is in different shapes and positions because the pacemaker is coming from different areas.

Question 36

36.   Please identify the abnormality seen on the EKG listed below:

A.  Paroxysmal atrial tachycardia
B.  Atrial Flutter
C.  Atrial Fibrillation
D.  Wandering atrial pacemaker

Answer 35

35.  Choice C is the correct answer.  Hypercalcemia is demonstrated by a shortened QT interval.  Hypocalcemia has a long QT interval.  Hypokalemia has flattened T waves and may have a U wave.  Hyperkalemia has peaked T waves.

Question 35

35.  Please identify the abnormality of the EKG listed below:

 
A.  Hyperkalemia
B.  Hypokalemia
C.  Hypercalcemia
D.  Hypocalcemia

Answer 34

34.  Choice B is the correct answer.  Bigeminy is when there is a PVC every other beat.  Trigeminy is when there is a PVC every third beat.  If there is two consecutive PVC's it is referred to as a couplet.

Question 34

34.  Please identify the abnormality on the EKG listed below:

A.  Trigeminy
B.  Bigeminy
C.  Couplet
D.  Triplet

Answer 33

33.  Choice D is the correct answer.  A lateral STEMI is demonstrated by ST elevation in leads I, avL, V5 and V6.  There is also some anterior infarction too.  There is no ST depression in leads V1 and V2 so a Posterior STEMI is not present.  There is no ST depression in leads V1 and V2 so there is no septal ischemia.  There is is reciprocal changes in the inferior leads (II, III, and avF) and no ST elevation so there is no inferior STEMI.

Question 33

33.  Please identify the pathology on the EKG listed below:

 

A.  Septal ischemia
B.  Inferior STEMI
C.  Posterior STEMI
D.  Lateral STEMI

Answer 32

32.  Choice B is the correct answer.  Multifocal PVC's are when the PVC's are both positive and negative deflected. This is because it is coming from multiple areas of focus.  Uni-focal PVC's the PVC's are all positive or negative deflection because they are coming from the same area of focus.  There is no such thing as a wandering ventricular pacemaker.  Wandering atrial pacemaker affects the P wave.

Question 32

32.  Please identify the abnormality seen on the EKG below:

A.  Uni-focal PVC's
B.  Multi-focal PVC's
C.  Wandering ventricular pacemaker
D.  Wandering atrial pacemaker

Answer 31

31.  Choice B is the correct answer.  Premature ventricular contractions (PVC's) are demonstrated by a widened QRS complex that occurs earlier than expected with a compensatory pause.  A premature atrial contraction is a P wave occurring earlier than expected.  A premature junctional contraction is an inverted P wave occurring before, during or immediately after the QRS complex prematurely.  A first degree AV block is when the PR interval is prolonged and there is no dropped QRS complexes.

Question 31

31.  Please identify the abnormality seen on the EKG below:



A.  Premature atrial contraction
B.  Premature ventricular contraction
C.  First Degree AV Block
D.  Premature junctional contraction