Home
HelpTest Code LAB107 Osmolality, Blood
Performing Laboratory
Barnes-Jewish Hospital Laboratory
Methodology
Freezing Point Depression
Literature Reference:
User’s guide: Advanced Micro-Osmometer model A2O. Advanced Instruments, Inc.
Specimen Requirements
Specimen Type: Plasma
Container/Tube: Mint-green top (lithium heparin)
Specimen Volume: Full tube
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: 2 to 4 hours after receipt in laboratory
Test Classification and CPT Coding
83930
Reference Values
275-300 mOsmo/kg H2O
Critical result (automatic call-back): ≤260 mOsmo/kg H2O or ≥330 mOsmo/kg H2O
Literature Reference:
Rifai N, Horvath AR, Wittwer AT eds: Textbook of Clinical Chemistry and Molecular Diagnostics 6 th ed: Chapter 35, p. 604, Elsevier, St. Louis, MO 2018.
Specimen Transport Temperature
Ambient
Additional Information
For BJH Laboratory Use Only
Alternate Tube:
1 dark green-top (lithium heparin) tube
1 red-top tube
Laboratory Processing Instructions:
Test performed in BJH Core Lab. Processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days.
Special Instructions
See Analyte Stability Chart under General Information for a complete list.
LOINC Code Information
| Name | LOINC Code |
| Osmolality, Blood | 2692-2 |