Immunoglobulin G Subclass 3

Test Code
5427


CPT Codes
82787

Preferred Specimen
1 mL serum


Minimum Volume
0.5 mL


Transport Container
Plastic screw-cap vial


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: 72 hours
Refrigerated: 10 days
Frozen: 30 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Lipemia


Methodology
Immunoturbidimetric Assay

Setup Schedule
Set up: Mon-Sat; Report available: 3-5 days


Reference Range
0-1 Year 19-85 mg/dL
2-3 Years 17-68 mg/dL
4-5 Years 10-122 mg/dL
6-7 Years 16-85 mg/dL
8-9 Years 13-85 mg/dL
10-11 Years 17-173 mg/dL
12-13 Years 28-125 mg/dL
14-17 Years 23-198 mg/dL
Adult 22-178 mg/dL


Clinical Significance
IgG 3 deficiencies are found in a small percentage of individuals with recurrent infections. Increased levels are found in diseases such as Kawasaki's Disease, Primary Biliary Cirrhosis, Hepatitis B, Secondary Syphilis and Borreliosis.


Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.