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Beta-2 Transferrin

Test Code


CPT Code(s)


Preferred Specimen(s)

0.5 mL fluid (nasal, otic, etc.)  collected in a sterile, screw-cap container

Minimum Volume

0.2 mL

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 30 days 
Refrigerated: 30 days 
Frozen: 30 days

Reject Criteria



Electrophoresis • Immunofixation

Performing Laboratory

Quest Diagnostics Chantilly Nichols Institute
14225 Newbrook Dr.
Chantilly, VA 20151-2228

Setup Schedule

Set up: Mon-Fri; Report available: Next day

Reference Range(s)

Not detected

Clinical Significance

The presence of Beta-2 Transferrin in nasal or ear fluid, or in wound drainage following head trauma, surgery or from tumors or congenital malformation, clearly indicates CSF leaking into these passages or fluids creating a pathway for life-threatening central nervous system infection.

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result NameLOINC CodeComponent Name
31258Beta-2 Transferrin13876-8Beta-2 transferrin

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided 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 payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.