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HelpTest Code LAB10188 Osmolality - 24 Hour Urine
Department
CHEMISTRY
Collection Requirements
24 hour urine.
Do not add preservatives to the collection container.
Keep the container on ice or refrigerated during collection
Primary Collection Container
24 HR Urine container
Transport
Urine refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Measure total volume.
Aliquot, centrifuge and refrigerate.
Note total volume on the label.
Stability
Ambient: 12 hours
Refrigerated: 1 week
Minimum Testing Volume
1.0 mL
Reference Range
800-1300 osm/24hr
Methodology
Freezing Point Depression
Performed
Sunday – Saturday
7:00 am – 3:30 pm
Reported
As completed
CPT Codes
83935
Unacceptable Conditions
Gross blood.
Particulate matter.