A Client in the Family Practice Clinic Has Restless Leg

A client in the family practice clinic has restless leg syndrome.Routine laboratory work reveals white blood cells 8000/mm³,magnesium 0.8 mEq/L,and sodium 138 mEq/L.What action by the nurse is best?

A) Advise the client to restrict fluids.
B) Assess the client for signs of infection.
C) Have the client add table salt to food.
D) Instruct the client on a magnesium supplement.