eMedicine: Hypernatremia : 
Clinical article by Steven L Stephanides, MD explains how sodium is regulated in the system, what causes high levels, how they are diagnosed, and treatment.
http://www.emedicine.com/emerg/topic263.htmeMedicine - Hypernatremia :
Trung Q Pham, MD discusses how this condition effects hospital patients. Includes symptoms, risk factors, causes, treatment, and medications.
http://www.emedicine.com/MED/topic1089.htm
Hypernatremia
Information includes what levels are normal, how sodium is regulated in the body, causes and symptoms, diagnosis, and treatment.
http://www.healthatoz.com/healthatoz/Atoz/ency/hypernatremia.jsp
Hypernatremia
Penn State Hershey Medical Center discusses what it is, who gets it, causes, symptoms, diagnosis, treatment, and self-care tips.
http://www.hmc.psu.edu/healthinfo/h/hypernatremia.htm
Healthline: Hypernatremia Health Article
Information includes definition, description, causes and symptoms, diagnosis, treatment, and prognosis.
http://www.healthline.com/galecontent/hypernatremia
