Osmolality Lab Values Lab Values Podcast by NURSING.com (Nursing Podcast, normal lab values for nurses for NCLEX®) by NURSING.com (NRSNG)

Normal
261 – 280 mOsm/kg

Indications
Monitor: Electrolyte balance Acid-Base balance Hydration Evaluate function of antidiuretic hormone.  
Description
Osmolality is a measure of the particles in solution. The size, shape, and charge of the particles do not impact the osmolality
 
What would cause increased levels?
Dehydration Azotemia Hypercalcemia Hyperglycemic Hyperosmolar Nonketotic State (HHNS) Hypernatremia Diabetes Insipidus Hyperglycemia Mannitol therapy Uremia Severe pyelonephritis Shock Ketosis  
What would cause decreased levels?
Hyponatremia Syndrome of Inappropriate Antidiuretic Hormone (SIADH) Overhydration