Osmolality, Serum

Method Name

Freezing Point Depression


Osmolality, Serum; Osmolarity, Osmolarity - Blood

Specimen Required

one SST/gel tube

Specimen Minimum Volume

2.0 mL of blood

Specimen Stability Information

Centrifuged specimen stable for 24 hours refrigerated.

Performing Laboratory

As ordered. Turn around time is 4 hours.

Reference Values

Male: 280 – 300 mOsm/kg
Female: 275 – 295 mOsm/kg

Day(s) and Time(s) Performed

As requested