Specimen:

Urine

Collection Medium:

Alternate
Collection Media:

Call laboratory for additional acceptable specimen collection 
containers.

Minimum:

3 ml;  do not collect in acid

Testing
Schedule:

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

Analytic Time:

3 hours (upon receipt in laboratory)

Reference Range:

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

Methodology:

Freezing Point Depression

Sample
Processing:

Submit urine in leak-proof plastic container.
Label transport tube with two patient identifiers, date and time of 
collection.

Sample
Storage:

Refrigerate.

Transport
Instructions:

Place requisition into outside pocket of bag.
Place specimen into zip-lock type bag, seal bag.
Transport in cooler with refrigerated coolant packs.

CPT Code:

83935

See Additional Information:
Urine Tests Requiring no Preservatives