Answer 20

20.  Answer B is the correct answer.  Torsades de point translated means "turning on a point."  It literal looks like it is rotating around the point.  Ventricular fibrillation is a fine wavy baseline and ventricular tachycardia is a wide complex tachycardia.  Supraventricular tachycardia is a narrow complex tachycardia because its pacemaker is coming from outside of the ventricles.

Question 20

20.  What is the diagnosis of the rhythm listed below:

A.  Ventricular Fibrillation
B.  Torsades de Point
C.  Supraventricular Tachycardia
D.  Ventricular Tachycardia

Answer 19

19.  Answer B is the correct answer.  With left ventricular hypertrophy, the QRS complexes become bigger in height and depth in leads V1-V6.  The S wave will be even deeper in V1.  The largest R wave will be in lead V5 because it lays over the left ventricle.  The T wave will often be inverted or cause asymmetry.  With right ventricular hypertrophy, there is large R wave in lead V1, there is amore positive deflection toward the V1 electrode and the QRS complex more upright than nomad.  The R wave gets progressively smaller in leads V2-V6.  With right atrial hypertrophy, the P wave is affected.

Question 19

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

A.  Right Ventricular Hypertrophy
B.  Left Ventricular Hypertrophy
C.  Right Atrial Hypertrophy
D.  Normal EKG

Answer 18

18.  Answer D is the correct answer.  With extreme right axis deviation, there is a negative deflection of the QRS complex is leads I and avF.  With a right axis deviation, there is a negative deflection in lead I and a positive deflection in lead avF.  With a normal axis, there is a positive deflection in leads I and avF.  With a left axis deviation, there is a positive deflection in lead I and a negative deflection in lead avF.

Question 18

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

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

Answer 17

17.  Answer B is the correct answer.  With hypokalemia, the T wave becomes flattened, and there may be a U wave associated with it.  With hyperkalemia, the P wave is flattened, the QRS complex is widened, and the T wave is peaked.  With hypercalcemia, the QT interval is shortened.  With hypocalcemia, the QT interval is lengthened.