Wednesday, February 6, 2013

Answer and Explanation 13

13.  B is the correct answer.  These EKG changes are consistent with digoxin toxicity.  With digoxin toxicity many changes can occur:  ST depression and T wave inversion in V5 and V6 in a reversed tick pattern, prolonger PR interval, shortened QT, heart block, and bigeminy.  This patient has no delta waves.  The P waves and the QRS complex are not dissociated so the patient does not have a third degree block.






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