Which dysrhythmia is considered life threatening?
A. P wave normal; atrial rate > 100; QRS complex width 0.06-0.08 second
B. P wave normal; atrial rate< 60; QRS complex width 0.08 second
C. P wave none identifiable; atrial rate disorganized activity greater 350 beats/min; QRS complex width irregular
D. P wave none; atrial rate cannot differentiate; ventricular rate 130-250 beats/min
Answer: D
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