Days Set Up
Varies; test performed once per week
Analytic Time

24 hours

MiChart Code
Beta 2 Transferrin, Body Fluid
Soft Order Code
B2TSF

Test Updated:

Synonyms

CSF in other body fluids
B2TSF
BETA-2 TRANSFERRIN, FLUID
Otorrhea (ear fluid leak)
Rhinorrhea (nasal fluid leak)

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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

Immunofixation

Test Usage

Detection of cerebrospinal fluid (CSF) in other body fluids, such as nasal or ear fluid.

Reference Range

Pathologist interpretation of results provided.

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

Specimen Requirements

Collection Offsite

Collect nasal or other body fluid specimen in clean tube or container. Refrigerate. Store at 2-8°C for up to one week.

Normal Volume
0.5 mL fluid
Minimum Volume
0.2 mL fluid

Billing Information

CPT Code
86335
Pro Fee Code
86335
LOINC
43858-0

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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.