What sodium level signifies hypernatremia?

Hypernatremia is defined as a condition in which there is an excess of sodium in the bloodstream, specifically when serum sodium levels rise above normal. The normal range for sodium in the body typically falls between 135 and 145 milliequivalents per liter (mEq/L). When sodium levels exceed this range, specifically when they are above 145 mEq/L, it indicates hypernatremia.

This condition can result from various factors such as dehydration, excessive sodium intake, or loss of water. Symptoms can include thirst, confusion, muscle twitching, and in severe cases, it may lead to neurological issues. Understanding the threshold for hypernatremia is crucial for diagnosis and treatment, making it important to recognize that the level signifying hypernatremia is indeed any value above 145 mEq/L.