For which of the following arrhythmias is an electronic pacemaker indicated?
a. Third-degree heart block
b. Sinus tachycardia
c. First-degree heart block
d. Ventricular fibrillation
ANS: A
Pacemaker therapy is used to treat sinus bradycardias that produce serious signs and symptoms and that do not respond to atropine (Figure 37-27). Electrical pacing also is used to manage sec-ond-degree type II and third-degree heart block.
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date of service. month. calendar year. contract.
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