Nephrology nurses take care of patients with kidney disease across the lifespan. It is possible that the patient is still in the womb or could be quite elderly. This module covers topics that are pertinent to both ends of the lifecycle.In Chapter 1, the pediatric chapter, the reader will find useful information on young patients with chronic kidney disease (CKD), complications of CKD in the young, acute kidney injury, treatments with kidney replacement therapies, and the special nutritional and pharmacological needs of the youthful patient. Helping adolescent patients transition to adult care is also addressed.Chapter 2 focuses on the care of the older adult with kidney disease. The aging process and the care of the older patient with kidney disease are addressed. This is a patient population whose numbers are on the rise. Unless nurses work strictly with pediatric patients, they will be delivering care to elderly patients. The special considerations in caring for this patient population must be taken into account.