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HelpTest Code U Osmo OSMOLALITY – URINE
Patient Preparation
No special patient preparation required
Collection Method
Urine collection
Minimum Volume
5.0 mL
Container
Urine: sterile container
Preferred Specimen
Urine: sterile container (10 mL)
Acceptable Specimen(s)
Urine: sterile container
Reference or Target Ranges
|
Urine (random): |
288-884 mOsm/Kg |
|
Urine (24-hr): |
261-900 mOsm/Day |
Reportable Units
mOsm/Kg
mOsm/Day
Critical Value
Not defined for this assay
Reasons for Rejection
|
Other: |
QNS, contaminated, improperly labeled, improper specimen type |
Specimen Stability
|
Ambient |
3 Hours |
|
Refrigerated |
10 Hours |
|
Frozen |
1 Week |
Performance Information
|
Days and Time Performed |
24/7 |
|
Expected Turn Around Time |
Stat: 1 Hour, Routine: 4 Hours |
|
Stat Availability |
Yes |
|
Performing Bench |
CRMC Chemistry |
Methodology/Method Description
Advanced Instruments Micro-Osmometer Model 3320 – Uses the technique of freezing-point depression to measure osmolality
CPT Codes
83930