Osmolality (measured)

Test informationDetails
Lab sectionClinical Pathology
Test descriptionOsmolality measured by freezing point depression osmometer.
SpeciesAll
Submission informationDetails
Sample type0.5 mL of serum or lithium heparinized plasma; no whole blood.
ContainerPlastic tube without additive.
Special submission instructions
  • Collect blood for serum in red top or serum separator tube.
  • Allow to clot.
  • Spin down within 1 hour of collection and remove serum.
  • Place serum in plastic tube and freeze.
  • Alternatively, collect blood for plasma in a lithium heparinized tube (green top).
  • Remove plasma within one hour of collection, place in a plastic tube, and freeze.
  • Ship samples on dry ice overnight Monday –Thursday.
Turnaround time1 business day