Osmolality

Overview

  • EPIC Code:
  • LAB107
  • Soft Test Code:
  • OSMO
Alternate Names
  • OSB
  • OSMO
  • Osmolality Serum

Specimen Collection & Preparation

Specimen Requirements

1.0 mL Plasma from a PST Mint Green Top Tube - Lithium Heparin (preferred)
or
1.0 mL Serum in a SST Gold Top Tube


Alternate Specimen

1.0 mL Serum from a Red Top Tube in a Plastic Vial
or 
1.0 mL Plasma from a Green Top Tube - Li Heparin in a Plastic Vial


TransportAndStorage

24 hours Ambient
5 days Refrigerated

12 hours unspun


Collection Instructions

 


Minimum Volume

0.2 mL Plasma or Serum


Neonatal Volumne

0.3 mL Whole Blood Green Microtainer

Clinical Interpretation

Reference Range:

280 - 300 mOsm/kg


Methodology:
  • Freezing Point Depression

Production Schedule

Sites Performed
  • Parkview Randallia Hospital
  • Parkview Regional Medical Center
Days Performed
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Chemistry

Coding & Compliance

CDM

01420280


CPT Coding

83930