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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
OSMOLALITY, SERUM |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2791 Geisinger Epic ID: 14382 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Specimen required: |
2 mL of serum; minimum 0.5 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow serum to clot. Centrifuge to separate serum. | |
Transport temperature: |
Refrigerated. | |
Specimen stability: |
Stable 10 days refrigerated. | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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Reference interval: |
278 - 305 mOsm/kg. | |
CPT code(s): |
83930 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Methodology: |
Freezing Point |
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Synonyms: |
Serum osmolality, serum osmo, OSMO
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Clinical significance: |
Serum osmolality measures the amount of osmotically active solute molecules in serum. It is commonly used to investigate low sodium (hyponetremia) and presence of toxins (methanol, ethylene glycol), drug therapies (mannitol, glycine), or metabolic disorders (glucose in diabetes). | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu, PhD, DABCC Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 12/14/2022 | |
Performing Locations
Geisinger Wyoming Valley Medical Center