After a action potential has passed down a neuron the K and Na swich how do they return?

Question

Is is a ATP driven pump? And when does this take place?

Answer 1

Yes. The Na-K pump uses ATP to pump the Na out and pump K back in. This will occur after the neuron has repolarized (K has left the cell and elevated Na levels occupy the cell)

Answer 2

the action of K+/Na+ ATPase returns the membrane potential to its rest state...!