Medical Definition of Hyponatremia

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Hyponatremia: Low sodium in the blood. Hyponatremia can be caused by many conditions and when severe can lead to confusion and seizures.

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Reviewed on 12/12/2018

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