Not recommended for evaluation of general hearing loss.
Serum Separator Tube (SST) or Plain Red.
Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL)
Urine or plasma. Heat inactivated and contaminated specimens.
Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
The presence of HSP70 IgG antibodies may be useful in predicting corticosteroid responsiveness in a subset of patients with autoimmune inner ear disease (AIED) characterized by idiopathic rapidly progressive sensorineural hearing loss (SNHL). HSP70 IgG antibodies are also associated with a number of autoimmune diseases and have also been reported in apparently healthy individuals. A negative result does not rule out response to treatment or to a diagnosis of AIED.
Laboratory Developed Test (LDT)
|Component Test Code*||Component Chart Name||LOINC|
|2013591||Heat Shock Protein 70, IgG by Immunoblot||43597-4|