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IgG Subclasses (082-7260)

CPT 4 Code: 86329

Test Order Mnemonic: IgG Sub

Synonyms: IgG Subclasses

Test Includes: IgG1, IgG2, IgG3, IgG4

Lab: Pediatric Immunology

Request Form: Clinical Immunology

Collection: Routine venipuncture

Storage Instructions: Allow to clot. Centrifuge at 1000 g for 10 minutes. Remove serum and store serum at 2-8°C (for up to 7 days, -20°C for longer).

Causes for Rejection: Unlabeled specimen, insufficient volume

Availability: Samples must be delivered to Pediatric Immunology/Allergy, 8 AM-5 PM, Monday-Friday, Room C2.360, Children's Hospital.

Turnaround Time: Routine: 4 days

Specimen: Blood

Volume: 3 ml whole blood; or 0.5 ml serum

Minimum Volume: 1 ml whole blood; or 0.3 ml serum

Container: Red-topped vacutainer

Reference Ranges: Age Dependent, call the laboratory for details 409-772-2658

Methodology: Binding Site Radial Immunodiffusion

Reviewed 07/25/2008; K. Palkowetz

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