Test Code OSMO
Osmolality, Serum
Methodology
Freezing Point Depression
Performing Laboratory
St. Clair Hospital Laboratory
Specimen Requirements
1 plain, red-top tube (1 mL of serum). Centrifuge blood as soon as possible, or send unspun blood to laboratory within 4 hours of draw.
Reference Values
280-296 mosm/kg
Day(s) Test Set Up
Monday through Sunday
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