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1629: IgG Subclass 4 Print View
IgG Subclass 4 NEPH  view ref range  mg/dL 

PRIMARY
1 Serum 1 (0.5) mL   Room Temperature - 7 Day(s)/Frozen - 2 Month(s)/Refrigerated - 14 Day(s)  
ALTERNATE

Immunoglobulin G (IgG) is the most abundant immunoglobulin of extravascular liquids (65%) and of serum (70-75%). Antibodies of the IgG class are produced in response to most bacteria and viruses. IgG consists of two heavy and two light chains contains contains less than 3% carbohydrate. IgG has four subclsses: IgG1, IgG2, IgG3, and IgG4. Both IgG1 and IgG3 bind firmly to the Fc receptors of phagocytic cells, activate killer monocytes (K cells), and cross the placenta. IgG1 is the principal IgG to cross the placenta and to protect neonates for the first three months. IgG subclass 4 is used to evaluate sinopulmonary infections, asthma.
Setup Schedule
Tuesday-Saturday

Reported (Analytical Time)
Same day

CPT Code
82787

The CPT codes provided 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 payer being billed.

Notes
Please provide patient age on Test Requisition Form to allow reporting of age-specific reference ranges. Omalizumab (Xolair, Genentech; humanized IgG1 antihuman IgE Fc)






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