What is the normal serum osmolality range in mOsm/kg?

The normal serum osmolality range is typically between 275 and 295 mOsm/kg. Serum osmolality is a measure of the concentration of solutes in the blood and is crucial for assessing hydration status and the body's electrolyte balance. If the osmolality is too low, it can indicate conditions such as hyponatremia, while high osmolality may suggest dehydration or hypernatremia.

Understanding the normal range is important for diagnosing and managing various medical conditions, particularly in acute care settings, where maintaining fluid and electrolyte balance is essential for patient stability and recovery. The values provided in the other options fall outside the accepted normal range, reinforcing that the chosen range is correct for assessing serum osmolality.