<prompt> When extracellular potassium is increased from 4 meq to 10 meq what will happenResting membrane potential becomes more negativeIncrease in conductance of sodiumIncrease in conduction of potassiumNa K ATpase will be stopped  <response>: If the extracellular potassium concentration surrounding a myocyte increases, then the potassiumgradient accross the cell membrane decreases, and therefore the resting membrane potential will become more positive. There fore increase in the conduction of pottasium increases Similarly, if extracellular potassiumdecreases, the resting membrane potential will be more negative. Ref guyton and hall textbook of medical physiology 12e p59 