How Does Extracellular Potassium Affect Resting Membrane Potential?
How Does Extracellular Potassium Affect Resting Membrane Potential? During cardiac disturbances such as ischemia and hyperkalemia, the extracellular potassium ion concentration is elevated. This in turn changes the resting transmembrane potential and affects the excitability of cardiac tissue. How does an increase in extracellular potassium affect the resting membrane potential? For instance, as potassium levels