Method Name
Freezing Point Depression
Aliases
Osmolality, Urine; Osmolarity - Random Urine, Osmolarity - Random Urine
Specimen Required
urine in a clean, dry container
Specimen Minimum Volume
1.0 mL of urine
Specimen Stability Information
Specimen stable for 24 hours refrigerated.
Special Instructions
Osmolality will vary with dietary intake.
Performing Laboratory
As ordered. Turn around time is 4 hours.
Reference Values
Male: 390 – 1090 mOsm/kg nFemale: 300 – 1090 mOsm/kg nHospitalized patient’s random urine range: 280 – 900 mOsm/kg