Test directory: Immunoglobulin G Subclass 4

Ordering Code 8553
Test Name Immunoglobulin G Subclass 4
Alias IgG 4
IgG Subclass 4
Gamma-globulins 4
Preferred Specimen Serum
Preferred Container SST (Gold)
Other Specimen/Container Serum in Plain (Red)
Optimum Volume 1 mL
Handling Instructions Separate serum promptly.
Transport Requirements Oahu: Ambient
Airline: Refrigerated
Specimen Stability Ambient: 72 Hours
Refrigerated: 10 Days
Frozen: 30 Days
Rejection Criteria Grossly hemolyzed, Lipemic
Avail. Stat NO
Analytic Time 10 Days
Methodology Immunoturbidimetric Assay
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 12, 2026.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Immunoglobulin G Subclass4 ALL See report.