What do the results mean?
If your serum osmolality results were not normal, it may mean you have one of the following conditions:
Antifreeze or other type of poisoning
Dehydration or overhydration
Too much or too little salt in the blood
Diabetes insipidus
Stroke
If your urine osmolality results were not normal, it may mean you have one of the following conditions:
Dehydration or overhydration
Heart failure
Liver disease
Kidney disease
If your stool osmolality results were not normal, it may mean you have one of the following conditions:
Factitious diarrhea, a condition caused by overuse of laxatives
Malabsorption, a condition that affects your ability to digest and take in nutrients from food
If you have questions about your results, talk to your health care provider. 
Learn more about laboratory tests, reference ranges, and understanding results.
