OSMOLALITY, SERUM
- Code
- 800.6999
- Name
- OSMOLALITY, SERUM
- Category
- None
- Department
- Serology
- Start Date
- Expiration Date
- Synonyms
- CPT Codes
- 83930
- Site
- Main Lab
- Reference Test
Specimen Information
- Type
Gold, SST
- Volume
2.0 ml
- Transport Info
Refrigerated
48 Hour stability- Fasting Required?
- False
- Patient Instructions
- Reference Range
280-301 mOsm/kg
- Methodology
Freezing Point Depression
Clinical Significance
Evaluate electrolyte and water balance, hyperosmolar status, and hydration status; evaluate dehydration, acid-base balance; evaluate seizures; clue to alcoholism, methanol toxicity, ethylene glycol ingestion; evaluate antidiuretic hormone function, liver disease, hyperosmolar coma, hypernatremia.
Increased in hyperglycemia, uremia, or alcoholism. Also used in monitoring renal diseases and diabetes