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HelpOrder Code Osmo Osmolality
Additional Codes
Epic Order ID LAB2294
Sub activity Type
Chemistry
Collection tube (preferred)
Green Li
Specimen Type
Plasma/Serum
Minimum Volume
0.6 ml
Stability
3 hours at room temperature
10 hours at 2-8°C
7 days at < 20°C
Transport temperature
Refrigerated
Rejection Criteria
Grossly hemolyzed, grossly lipemic
Acceptable collection tube
SST
Clinical Significance
Serum osmolality is increased in hypernatremia, hyperglycemia, uremia, ethanol, methanol, or ethylene glycol overdoses, and in diabetes insipidus.
Reference Range
275 - 300 mOsm/Rg