The congestive heart failure patients are given Ouabain to revive them. Which of the following correctly describes the mode of action of Oubain Ouabain inhibits the function of the sodium-potassium pump which increases sodium concentration in the cell. Due to the high sodium concentration in the cell, the sodium-calcium antiporter stops working which results in increased calcium concentration in the heart muscle cells required for the heart to beat. O Ouabain inhibits the function of the sodium-calcium antiporter directly by binding onto and blocking the calcium export out of the heart muscle cells and raise the intracellular concentration of calcium required for the heart to beat. All of the other are correct O Ouabain blocks the calcium export channels and helps to raise the intracellular concentration of calcium in the heart muscle cells required for muscles to contract again to resume the beating of the heart.

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Clinical Pharmacology

Pharmacology is a discipline of medicine that studies how medications interact with the systems and processes of living organisms, focusing on drug action mechanisms as well as therapeutic and other purposes.