Method Name
Freezing Point Depression
Aliases
Osmolality, 24 Hour Urine; Osmolarity, Osmolarity - 24hr Urine
Specimen Required
urine in a 24 hour urine container (available from the Laboratory)
Specimen Minimum Volume
submit entire collection
Specimen Stability Information
Keep refrigerated during collection.
Special Instructions
Urine osmolality will vary with dietary intake.
Performing Laboratory
As ordered. Turn around time is 4 hours.
Reference Values
Male: 770 – 1630 mOsm/kg nFemale: 430 – 1150 mOsm/kg