This module will provide an overview of the nursing interventions in fluid balance and electrolytes. Learners will review the regulatory processes for sodium and water balance in the body and identify the causes of fluid volume excesses and deficits. They will also Identify causes of hypo/hyperkalemia, hypo/hypernatremia, hypo/hypercalcemia, and other basic electrolytes and interpret physical and diagnostic assessment findings in clients with alterations in fluid balance and electrolytes.