Hyponatremia is an important and common electrolyte abnormality that can be seen in isolation or, as most often is the case, as a complication of other medical illnesses. It is defined as a serum sodium level <135 mEq/L and is considered severe when the serum level is <125 mEq/L. Many medical illnesses, such as congestive heart failure, liver failure, renal failure, and pneumonia, may be associated with hyponatremia. Test your knowledge of this condition with our short quiz.
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Cite this: Romesh Khardori. Fast Five Quiz: What Do You Know About Hyponatremia? - Medscape - Apr 19, 2016.