Explain how fluids shift in the body in a person with hyponatremia. Why does hyponatremia lead to impaired nerve conduction (action potentials)?

  1. Explain how fluids shift in the body in a person with hyponatremia. Why does hyponatremia lead to impaired nerve conduction (action potentials)? What phase of an action potential requires a sodium gradient? Why does hyponatremia lead to hypovolemia? Finally how does hyponatremia potentially trigger seizures?