Test Directory

Clear All
Test Code
HSP70
Test Name
Heat Shock Protein 70 IgG
CPT Codes
84181
Expected Turnaround Time
5 days
Clinical Utility

Detection of antibodies to the 68-kD (hsp-70) antigen associated with sensorineural hearing loss (SNHL).
Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions

Transport to the laboratory refrigerated. 
Stability Requirements

Room Temperature

24 hours

Refrigerated

14 days

Frozen

14 days

Freeze/Thaw Cycles

 Stable x3
Causes for Rejection
  • Grossly hemolyzed
  • Lipemic
  • Microbially contaminated samples
Methodology
Western Blot (Wb)
Reference Intervals

See patient report.
Limitations

Positive results may be found in other autoimmune conditions or certain infectious diseases. Results should be interpreted in light of the patient's clinical history and other laboratory findings.

Results for this test are for research purposes only by the assay's manufacturer. The performance characteristics of this product have not been established. Results should not be used as a diagnostic procedure without confirmation of the diagnosis by another medically established diagnostic product or procedure.
Alternate Names
  •  68-kD (hsp-70)
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, 2 times per week
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
© 2026 HNL Lab Medicine. All rights reserved.