Osmolality Serum

Test Code
SEROSMO(SD) (3204)

Quest Code
3204

CPT Codes
83930

Preferred Specimen
1 mL serum

Minimum Volume
0.5 mL

Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 60 days

Methodology
Freezing Point Depression

Setup Schedule
Mon-Sat

Report Available
1 to 2 Day(s)

Reference Range
278-305 mOsm/kg

Clinical Significance
Serum osmolality is increased in hypernatremia, hyperglycemia, uremia, ethanol, methanol, or ethylene glycol overdoses, and in diabetes insipidus.

Performing Laboratory
Quest Diagnostics Nichols Institute
27027 Tourney Road
Valencia, CA 91355-5386




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.