Beta-2, Transferrin BF
Order Name
BETA-2 TRA
Test Number: 3656675
Revision Date 05/19/2025
Test Number: 3656675
Revision Date 05/19/2025
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Beta-2, Transferrin BF
|
Immunofixation Electrophoresis |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 0.5 mL | Body Fluid | Sterile Screwtop Container | Frozen |
| Instructions | Specimen: Body Fluid Do Not send CSF specimens! Volume: 0.5 mL Container: Sterile container, syringe, test tube, or microtube Collection: These specimens should be frozen immediately following collection and kept frozen. 1. If submitting a syringe, remove needle. Add cap to end of syringe. 2. If direct collection is not feasible, specimen may be collected using a plain cotton swab or gauze. 3. If gauze is used to collect specimen, circle area on the guaze where specimen was collected. 4. Place cotton swab or gauze in as small a container as possible (eg, plain test tube or collection container). 5. DO NOT collect specimen with a culture swab. 6. DO NOT add any liquid to the swab or gauze. Cause for Rejection:Specimens collected with additives such as microbiology media (eg, Stuart or Amies liquid medium) or TransFix/EDTA will be rejected. Specimen collected with a culture swab. Adding any liquid to the swab or gauze. Testing referred to Mayo Clinic Labs ;V#BETA2 |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 4 - 8 days |
| Clinical Use | This test is to detect CSF in body fluids such as sinus or ear drainage. |
| CPT Code(s) | 86335 |
| Internal Comments | 5/19/25 from 829030 to 834198 - JK Aural or nasal fluid in sterile container; Do Not Freeze. Do Not send CSF specimens! Notes: 1 mL (Note: This volume Does NOT allow for repeat testing). Specimen Type: Sterile container Specimen Storage: Refrigerated Special Instructions: Testing referred to ARUP TC 50047 Specimen Stability: Ambient: 2 weeks; Refrigerated: 2 weeks; Frozen: 2 weeks Group Test ------------ 12/30/15 removed 86334 from cpt list - JK ------------ 11/29/16 removed (ARUP no longer requires both serum & nasal drainage be submitted at the same time.) Collect BOTH Serum and Drainage Fluid. Keep Serum and Drainage Refrigerated - Do Not send CSF specimens! 2mL(1mL) Serum in clot tube and 2mL(1mL) of aural or nasal drainage fluid in sterile container. Properly label specimen type on each tube. Specimen Stability: Ambient: 4 hours; Refrigerated: 3 days; Frozen: Unacceptable. ---------- 10/6//17 added link - JK 3/16/2020 updated stab from Ambient: 4 hours; Refrigerated: 72 hours; Frozen: Unacceptable to Ambient: 2 weeks 2 weeks; Refrigerated: 2 weeks; Frozen: 2 weeks -JK |
| Lab Section | Reference Lab |