Osmolality
Label Mnemonic: UROS
Epic Lab Code: LAB653
Downtime Form: A-1a General Laboratory Requisition
Chemistry
6240 RCP
356-3527
Specimen(s):
Urine
Collection Medium:
Clear top tube
Alternate Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3.0 mL urine; do not collect in acid
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
Dependent upon diet and state of hydration. Commonly: 350-1050 mOsm/kg
Methodology:
Freezing Point Depression
CPT Code:
83935
 
See Additional Information:
Urine Tests Requiring no Preservatives