Osmolality

Label Mnemonic:	OSMS
Epic code:	LAB107
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Chemistry
6240 RCP
356-3527

Specimen(s):

Plasma

Collection Medium:

Plasma Separator Tube 4.5 mL

Alternate Collection Media:

Call laboratory for additional acceptable specimen collection containers.

Minimum:

3 mL whole blood in light green tope tube or ONE Microtainer^® for pediatric patients.

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

1 hour (upon receipt in laboratory)

Reference Range:

Adult males 280-300 mOsm/kg; adult females 275-295 mOsm/kg

Methodology:

Freezing Point Depression

CPT Code:

83930