Yale New Haven Hospital

Department of Laboratory Medicine
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Immunoglobulin G

Lab Section: 

Immunology

 

Lab Location: 

Main Lab

Test ID: 

LAB71

 

Methodology: 

Turbidimetry

Schedule: 

Monday-Friday

Reported: 

2 days

Specimen Requirements: 

Collection: 5.0 mL Blood in a Gold Top Tube
Pediatric volume: 1.0 mL
Unacceptable conditions: Grossly hemolyzed specimens
Stability: After separation from cells: Ambient: 48 hours; Refrigerated: 7 days; Frozen: 3 months

 

Notes: 

Clinical Indications: The measurement of gamma globulin in serum and other body fluids aids in the diagnosis of autoimmune diseases, sarcoidosis, chronic liver disease, chronic and recurrent infections, lymphoid malignancies, multiple myeloma and sever combined and variable immunodeficiencies.

Reference Interval: 

0-30 days:  Not established
1-6 months: 165-870 mg/dL
6 months-2 years: 206-1164 mg/dL
2-10 years: 407-1509 mg/dL
>10 years: 768-1632 mg/dL

CPT Code(s): 

82784

Last Changed: 

07/25/2017 11:26:37

Last Reviewed: 

8/14/2017 15:51:04