sodium is low on blood test
When your body has too much sodium, your kidneys can't remove enough of it and sodium collects in your bloodstream. This can lead to high blood pressure, which can cause other problems. Too much sodium in the blood is a condition called hypernatremia. Too little sodium in the blood is a condition called hyponatremia. Hypernatremia can occur when you lose too many fluids, often from sweating too much, vomiting, or diarrhea.