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. 2015 Jan 29;1(2):58–61. doi: 10.1016/j.hrcr.2014.12.012

Figure 1.

Figure 1

A: Baseline ECG showing 2:1 AV block. B: After atropine bolus, 2:1 AV block immediately turns to Mobitz type 1 AV block. C: Normal AV conduction is achieved at the late stage of atropine sulfate infusion.