Cellular edema is present during hypernatremia because when sodium losses exceed water losses, sodium moves from the ECF to the ICF, and water enters the ICF.

Question

Quizplus · Accepted Answer

During hyponatremia, or low serum sodium level, cellular edema is present. The reason portion of the question provides a concise explanation. The detailed mechanism involves fluid retention during hyponatremia because sodium losses exceed water losses. This leads to a greater concentration of water than sodium, which decreases the extracellular fluid concentration (ECF). As a result, sodium moves from the ECF to the ICF and water enters the ICF. These events result in cellular edema (retention of fluids). The cause and mechanisms of hypernatremia (elevated serum sodium level) are reversed. Note that peripheral edema and cellular edema are not the same condition.

Cellular Edema Is Present During Hypernatremia Because When Sodium Losses