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ACLS Cardiac Arrhythmia Quiz #5
Which condition does this ECG tracing show?
A. Second-Degree Heart Block (Type I)
B. Sinus Arrhythmia
C. Ectopic Atrial Tachycardia
D. Atrial Fibrillation
Answer Expand / Collapse
The correct answer is A, Second-Degree Heart Block (Type I). It is characterized by regular p-waves and a PR-interval that gets progressively longer until a QRS is dropped and only the p-wave is present.
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