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Test Listings

Heat Shock Protein 70 (68 Kda), IgG by Western Blot

HEATS

Method(s): Western Blot

Specimen Required:

Collect: One 5 mL gold (SST) or one plain red top tube.

Transport: 0.5 mL serum at 2-8°C. (Min: 0.2 mL)

Stability: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year

Unacceptable Conditions: Hemolyzed or lipemic specimens. Specimens with large clots present or bacterial growth. Specimens collected with anticoagulants or preservatives.

Schedule: Thu

Billing Code: 5010799

CPT Code: 84182

Notes: DO NOT use anticoagulants or preservatives.

Reference Interval

Negative.

Interpretive Data: Western blot assay for HSP70 (68kDa), IgG antibody may be utilized in predicting corticosteroid responsiveness in patients with idiopathic rapidly progressive sensorineural hearing loss. Indeterminate results should be repeated using a fresh specimen collected after 10-14 days. Other autoimmune diseases may also produce positive results.