Potassium (K, atomic number 19) is an alkali metal and its ions (K+) are necessary for the function of all living cells. Potassium is important in hyperpolarization of membranes during nerve transmission and in regulating a cell's osmotic balance. Potassium is transported across membranes by potassium channels and the ion pump Na+/K+-ATPase.

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    New data suggest that treatment with patiromer or sodium zirconium cyclosilicate for up to 8 weeks reduces plasma potassium levels in hyperkalaemic patients. If proven safe and effective for long-term use, these therapies might be administered together with intensive renin–angiotensin–aldosterone blockade to reduce adverse effects and renal and cardiovascular risk.

    • Sara S. Roscioni
    •  & Hiddo J. Lambers Heerspink