Hyponatremia is the most common disorder of fluid and electrolyte balance encountered in clinical practice. It is essential to diagnose and manage hyponatremia promptly because it may lead to serious consequences if not treated appropriately. This mobile application contains information on common risk factors for hyponatremia, an interactive algorithm to help you make evidence-based diagnostic and treatment decisions, and a list of helpful resources for further exploration. Users can claim up to 0.25 AMA PRA Category I Credits™ for using the app.