Before you perform an ECG on your patient, he informs you that he has a pacemaker but isn't sure what kind. A portion of the ECG tracing is shown here. What type of pacemaker does this patient have? 
A. Ventricular pacemaker
B. Atrial pacemaker
C. AV pacemaker
D. Atriobiventricular pacemaker
Answer: B
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Answer the following statement(s) true (T) or false (F)
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