Osmolality
Additional Codes
LAB107
Performing Laboratory
MBMC Main Laboratory
Methodology
Freezing Point Depression
Specimen Requirements
Specimen Type: Serum
Container/Tube: Red top-Any other
tube is not acceptable.
Specimen Volume: Full tube
Additional Information: When a serum and urine osmolality are both ordered, they should be collected simultaneously. Call Missouri Baptist Medical Center Laboratory Customer Support at 314-996-4522 when the urine is collected so the serum specimen can be drawn.
Specimen Transport Temperature
Ambient
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: within 4 hours
Reference Values
275-295 mOsm/kg
Test Classification and CPT Coding
Test Classification:This test has been cleared
or approved by the U.S. Food and Drug Administration and is used
per manufacturer’s instructions.
CPT Code:
83930