title: Transient, "paradoxical" effects of increasing extracellular K+ concentration on transmembrane potential in canine cardiac purkinje fibers. Role of the na+ pump and k+ conductance.
mesh_terms: D000818:Animals; D002712:Chlorides / Q000494:pharmacology; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D006329:Heart Conduction System / Q000502:physiology*; D008564:Membrane Potentials; D010042:Ouabain / Q000494:pharmacology; D011188:Potassium / Q000494:pharmacology*; D011690:Purkinje Fibers / Q000502:physiology*; D013431:Sulfates / Q000494:pharmacology; D013757:Tetraethylammonium Compounds / Q000494:pharmacology; D013997:Time Factors
chemical_list: D002712:Chlorides; D013431:Sulfates; D013757:Tetraethylammonium Compounds; D010042:Ouabain; D011188:Potassium