Test Overview

Test Methodology

Freezing Point

Test Usage

Evaluation of electrolyte balance, hyperosmolar status and hydration status.

Reference Range*

269 - 298 mOsm/kg

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Days Test Performed

Daily, 24 hours

Analytic Time

2 hours

Soft Order Code

OSMO

MiChart Code

Osmolality, Serum

Synonyms

Synonyms

OSMOLALITY SERUM
OSMO

+ See More

Laboratory

Chemical Pathology

STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Looking to Order a Test?

We’ve provided helpful links to make ordering easy.

Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Specimen Requirements

Offsite Collection Instructions

Collect blood in SST or red top tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Container

Yellow Top Tube
Red Top Tube

Normal Volume

0.5 mL serum

Minimum Volume

0.25 mL serum

Billing Information

Fee Codes


CPT Code

83930

LOINC

2692-2

Have More Billing Questions?

Explore our helpful billing resources:

Billing Resources


Billing FAQ