A transvenous pacemaker is inserted through the right subclavian vein and threaded into the right ventricle. The pacemaker is placed on demand at a rate of 70 . The pacing mode for this pacemaker is
a. VVI. c. DDD.
b. AOO. d. VAT.
A
The original code is based on three categories, each represented by a letter. The first letter refers to the cardiac chamber that is paced. The second letter designates which chamber is sensed, and the third letter indicates the pacemaker's response to the sensed event. A VVI pacemaker paces the ventricle when the pacemaker fails to sense an intrinsic ventricular depolarization.
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