Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

OSMOLALITY, SERUM

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB2791         Geisinger Epic ID: 14382

SPECIMEN COLLECTION
Specimen type:
Serum
Preferred collection container:
Specimen required:
2 mL of serum; minimum 0.5 mL.

SPECIMEN PROCESSING
Specimen processing instructions:
Allow to clot. Centrifuge 10 minutes at 1100-2000 x g at room temperature. 
Transport temperature:
Refrigerated.
Specimen stability:
Stable 10 days refrigerated.
Rejection criteria:
Stability limits exceeded.

TEST DETAILS
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
Synonyms:
Serum osmolality, serum osmo, OSMO
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    
Review Date: 12/10/2020

Performing Locations

Geisinger Medical Center

Performing laboratory: Stat Lab
Technical Lead: Karen Delp
Frequency: Daily, Monday-Sunday
Performed stat? Yes

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Sarah McGowan    
Frequency: Daily, all shifts    
Performed stat? Yes

Geisinger Community Medical Center

Performing laboratory: Hematology
Technical Lead: Renee Bordo, Robert Furcon  
Frequency: Daily    
Performed stat? Yes

Geisinger Lewistown Hospital

Performing laboratory: Chemistry
Technical Lead: Melissa Forsythe  
Frequency: All shifts    
Performed stat? Yes
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