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Test Code MISC1WARDE2013590 Heat Shock Protein 70 IgG, by Immunoblot

Department

SEND OUTS

Reference Lab Test Number

2013590

Primary Collection Container

Gold (SST)

Alternate Collection Container

Red (No Gel)

Transport

Serum refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Transfer 0.5 mL serum to an ARUP Standard Transport Tube.

Stability

Ambient: 48 hours

Refrigerated: 2 weeks

Frozen: 1 year

Minimum Testing Volume

0.1 mL

Reference Range

Negative

Methodology

Qualitative Immunoblot

Performed

Sunday, Tuesday, and Thursday

Reported

2-5 days

CPT Codes

83516

Unacceptable Conditions

Urine or plasma. Heat inactivated and contaminated specimens.

Additional Information

Testing forwarded to ARUP Laboratory by Warde Medical Laboratory.

ARUP mnemonic is HSP.

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.