Osmolality, Plasma

Osmolality

Chemistry
6240 RCP
356-3527

Specimen:

Plasma

Collection Medium:

Plasma Separator Tube

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.

Analytic 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

See also:
Osmolality-Other, Body Fluid (e.g., surgical drain, pericardial, peritoneal, peritoneal dialysis, pleural, or synovial)