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Osmolar Gap
Alternative Names/Synonyms
N/A
Laboratory
Core Laboratory & Transfusion Medicine
Sub-section
Biochemistry
Specimen Type
Blood
Test Code
OSMGP, OSGPC
Clinical Significance
Identifying the presence of toxic alcohol.
Osmolar Gap is calculated via:
Measured
Osmolality
- (2 x
Sodium
) -
Urea
-
Glucose
Specimen Requirements (Sample Type)
Serum, Plasma
Specimen Requirements (Volume (mL))
0.5 mL
Specimen Requirements (Tube Type)
Serum (Gold SST)
Plasma (Light Green PST)
Collection Containers – Tube Types
Collection Requirements
Blood Collection Instructions
Cause for Rejection
Specimen Acceptability and Transport Guidance
Instrument, Methodology
Calculated
Test Availability
24 hours a day, 7 days a week
STAT Turnaround Time
1 hour
Routine Turnaround Time
3 hours
Reference Ranges
None
Laboratory Contact Information
416-586-4800 extension 4688