Beta 2 Transferrin, Body Fluid

BETA2TRF

EPIC Test Procedure Code: LAB5638

Synonyms:

B2TRF BF

Beta-trace protein, body fluid

Performing Lab:

Referral Laboratory

Required Patient Info:

Mayo is currently performing BETA2. Change order to Mayo MISC with test code BETA2.

Container Type:

Pipet, syringe, test tube, or microcollection device.

Specimen Type:

Nasal, Otic, etc

Preferred Volume:

0.5 mL

Alternate Specimens:

If direct collection is not feasible, specimen may be collected using a cotton swab. Place the cotton swab in as small a container as possible, do NOT add any additional fluid to swab.

Minimum Volume:

0.5 mL - results are obtainable on smaller specimens (perhaps as little as 0.05 mL), but reliable results are best obtained with an adequate specimen volume.

Collection Procedure:

1. If submitting a syringe, remove needle. Add cap to end of syringe.

2. If preferred collection is not feasible, specimen may be collected using a plain cotton swab, pledget, or gauze.

a. For gauze: circle area on the gauze where specimen was collected.

b. Swab, pledget, or gauze: place in a small container (plain test tube or sterile container).

3. Do not collect specimen with a culture swab.

4. Do not add any additional liquid other than source to the swab or gauze.

5. Do not collect or send swab or gauze specimens in containers with additional liquids or additives.

Store and Transport:

Frozen

Stability:

Refrigerated: 14 days
Frozen: 30 days
Ambient: 14 days

Unacceptable Condition:

Samples with gross hemolysis will be rejected. Samples with additives (eg, microbiology transport media, TransFix/EDTA) will be rejected.

CPT Codes:

83883 - BETA TRACE PROTEIN, NEPHELOMETRY EA ANALYTE (EAP 30127277)

Method:

Polystyrene particles coated with antibodies to human B-trace protein are agglutinated when mixed with samples containing B-trace protein. The intensity of the scattered light in the nephelometer depends on the concentration of the analyte in the sample and consequently its concentration can be determined by comparison with dilutions of a standard of known concentration.

Lab Personnel

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