Which of the following statements regarding treatment for a first-degree heart block is correct?
A) Treatment is generally not indicated unless the rate is slow and cardiac output is impaired.
B) Most first-degree heart blocks are associated with significant bradycardia and require atropine.
C) First-degree heart block is often accompanied by a compensatory tachycardia that requires treatment.
D) Transcutaneous cardiac pacing should be initiated without delay for patients with a first-degree heart block.
Answer: A) Treatment is generally not indicated unless the rate is slow and cardiac output is impaired.
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