Days Set Up
Daily, 24 hours
Analytic Time

2 hours

MiChart Code
Osmolality, Fluid
Soft Order Code
OSMF

Test Updated:

Synonyms

OSMF

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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

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Test Overview

Test Methodology

Freezing Point

Test Usage

Evaluation of electrolyte balance, hyperosmolar status and hydration status

Reference Range

No established reference range for fluid osmolality samples.

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

Specimen Requirements

Collection Instructions

Collect body fluid in clean container with no preservative (SST or red top tube, Vacutainer® tubes are also acceptable). Refrigerate. Body fluid must be of liquid consistency for analysis. Watery stool sample acceptable.

Normal Volume
0.5 mL fluid
Minimum Volume
0.25 mL fluid

Billing Information

CPT Code
83930
Pro Fee Code
 
Insurance Auth Info
 
LOINC
15200-9

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.