Your 44 year old patient has a heart rate of 94 BPM. Analysis of the ECG reveals a regular rhythm with sawtooth appearing waves preceding each narrow QRS complex. This is likely the result of:
A) early beats arising from the atria.
B) the atrial firing at a rate of between 250 and 350 BPM.
C) a changing pacemaker site.
D) AV heart block.
Correct Answer:
Verified
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