Osmolality

Label Mnemonic:	UROS
Epic code:	LAB653
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Chemistry
6240 RCP
356-3527

Specimen(s):

Urine

Collection Medium:

Clear top tube

Alternate Collection Media:

Call laboratory for additional acceptable specimen collection containers.

Minimum:

3.0 mL urine; do not collect in acid

Testing Schedule:

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

Turn Around Time:

1 hour (upon receipt in laboratory)

Reference Range:

Dependent upon diet and state of hydration.
Commonly:  350-1050 mOsm/kg

Methodology:

Freezing Point Depression

CPT Code:

83935