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. 2016 Jul;32(4):485–490. doi: 10.6515/ACS20150823A

Figure 1.

Figure 1

Effects of acetaminophen on the action potential (AP) of the left atrium (LA) without spontaneous activity. (A) Superimposed tracings and (B) average data of the AP and contractility in the LA (n = 8) before and after administration of the different concentrations (0.1, 0.3, 1, and 3 mmol/L) of acetaminophen. * p < 0.05, # p < 0.01, † p < 0.005 versus the baseline. APA, AP amplitude; APD20, APD50, and APD90, AP duration at a repolarization of 20%, 50%, and 90% of the APA, respectively; RMP, resting membrane potential.