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Test Code OSMO Osmolality, Serum

Performing Laboratory

Northwell Health Laboratories

Methodology

Freezing Point Depression

Reference Values

0- 30 Days                    266 - 300  mosmol/kg

30 Days - 60 Years       275-300 mosmol/kg

60 - 150 Years              280 - 301  mosmol/kg

Test Classification and CPT Coding

83930

Physician Office Specimen Requirements

Container/Tube:  Gold-top tube(s)

Specimen:  1 mL of serum (0.5 mL mim)

Transport Temperature:  Refrigerate

Stability:   24 Hours Room Temperature

                  7 Days Refregerated

Day(s) and Time(s) Performed

Monday through Sunday

Computer Interface Code

PDM #  5300365