Inner Ear (Cochlear) Antigen by Western Blot (Sendout)
General Information
- Lab Name
- Inner Ear (Cochlear) Antigen by Western Blot (Sendout)
- Lab Code
- REARWB
- Epic Name
- Inner Ear (Cochlear) Antigen by Western Blot (Sendout)
- External Test Id
- F68KD
- Description
Test Description: Qualitative test for 68kD (hsp-70) antibodies.
- References
- Mayo Clinical & Interpretive Information: 68kD (hsp-70) antibodies by Line Blot
- Synonyms
- anti 68kD Ab, Autoantibody Inner Ear, Cochlear Antibody, F68KD, Heat Shock Protein, HSP 70, HSP-70
- Components
-
Code Name REARWR Inner Ear Antigen: Anti 68 kD Antibody
Interpretation
- Method
Line Blot
- Reference Range
- See individual components
- Interferences and Limitations
This test has been validated using serum samples. The manufacturer has not determined the efficacy of this test when performed on CSF, plasma, joint or pleural fluid specimens.
Ordering & Collection
- Specimen Type
- Blood
- Collection
-
9 mL blood in RED TOP tube or GOLD SST
- Handling Instructions
Outside Laboratories: Centrifuge sample and aliquot 2-3 mL serum into a separate plastic vial, leaving room at the top for expansion. Freeze serum at -20°C while awaiting shipment. Transport on dry ice.
Stability: Frozen (preferred): 365 days; Refrigerated: 5 days; Ambient: 48 hours.
- Quantity
-
Requested: 3 mL serum
Minimum: 2 mL serum
Processing
- Receiving Instructions
Centrifuge sample and aliquot 2-3 mL serum into a separate plastic vial, leaving room at the top for expansion. Freeze serum at -20°C.
Sendouts:- Order Mayo Test: F68KD
- Interfaced: Yes [Interface: 601; Worksheet: MAFZ]
Stability: Frozen (preferred): 365 days; Refrigerated: 5 days; Ambient: 48 hours.
- Misc Sendout
Performance
- Lab Department
- Sendouts Mayo Lab (FZ)(MAFZ)
- Frequency
- Performed: Once per week. Reported: 3-8 days from sample receipt at Mayo Clinic Laboratories.
- Available STAT?
- No
- Performing Location(s)
-
Sendout Mayo forwards to Immco Diagnostics, Inc.
800-533-171010 Earhart Dr.
Suite 100
Williamsville, NY 14221
Billing & Coding
- CPT Codes
- 84182
- LOINC
- 43597-4
- Interfaced Order Code
- UOW2309
- Billing Comments
Qualitative test - Positive or Negative
Interpretation: Antibodies to inner ear antigen (68kDa) occur in approximately 70% of patients with autoimmune hearing loss. The antibody tests to this 68kDa antigen parallel with disease activity. In addition, a majority of patients positive for antibodies to 68kDa are responsive to corticosteroid treatment.¹