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Крок 1 - Медицина 2018

A patient with ciliary arrhythmia was prescribed digoxin. What mechanism of action of this medicine results in its antiarrhythmic effect?

Increased potassium concentration in the cardiomyocytes
Decreased sympathetic influences
Decreased permeability of the cell membrane to calcium
Decreased permeability of the cell membrane to sodium
Inhibition of Na⁺, K⁺-ATPase