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Test Code OSMO OSMOLALITY, SERUM

Important Note

Due to an instrument update at MMC-P, microtainers are no longer acceptable for this test at this site due to low volume.  Please see minimum volume section for more information.

Additional Codes

Software Test Code
Label Text                                        OSMO  
EPIC LAB107                                   

Performing Laboratory

NorDx Laboratories

Useful For

Assessing electrolyte and acid-base disorders

Method Name

Freezing Point Osmometry

Reference Values

280 – 300 mosm/kg

 

Please note:  Mild hemolysis interferes with the accuracy of this assay and may not be visually detectable. Please interpret with caution. Clinical correlation is essential.

Days and Times Test Performed

Monday through Sunday

Report Available

1 Day

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

Serum: 1 mL (Serum Separator Tube (SST))

Minimum Volume

Serum: 0.5 mL (Serum Separator Tube (SST))

 

Please note:  minimum serum volume at MMCP is 0.6 mL.  No microtainers are permitted for use at this site.

Specimen Collection and Handling

Spin specimen, separate from clot and send refrigerated.

Specimen Stability Information

Specimen Type Temperature Time
Serum/plasma              Refrigerated     48 hours    
  Ambient 48 hours

Must be spun/separated within: 2 Hours

Add On Capable

Yes

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code

CPT Description

CPT Disclaimer

83930 Osmolality, Blood  

Performing Laboratory Location

NorDx Laboratories - MMC-P, MMC-B, MidCoast, and Memorial Hospital sites

LOINC Code Information

2692-2

Acceptable Alternative Container(s)

Red Top Tube

Plasma Separator Tube (PST) - MMC - P only

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