The word hyponatremia derives from the words hypo (“under” or “less”) and natrium (“sodium”). The word natrium is the basis for the abbrevia
The word hyponatremia derives from the words hypo (“under” or “less”) and natrium (“sodium”). The word natrium is the basis for the abbreviation Na for sodium. Hyponatremia is a rare condition, but has become of more concern with the rise in amateur runners participating in marathons. Since they run slower, they spend longer on the course and have more opportunity to drink water and sweat out additional sodium.Marathon runners are encouraged to stop at water stations along the course to stay hydrated. However, occasionally a runner drinks too much water and suffers from hyponatremia, or “water intoxication”. While water itself is not toxic, drinking too much can upset ion balance in the extracellular space. Based on what you know about ions and nerve signaling, the levels of which important ion are most likely to be disrupted in hyponatremia?