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IgG, SUBCLASS 4
Number 1538
CPT Code 82787
Alias
Specimen Container SST
Specimen Type Serum
Turn Around Time
Days Performed
Reference Range Contact Laboratory
Alternate Specimen Red Top
Volume 1 mL Serum
Stability Ambient 7 Days
Stability Refrigerated 7 Days
Stability Frozen 14 Days
Patient Preparation
Methodology
Immunologic
Limitations
This procedure is not suitable for the measurement of samples containing rheumatoid factor, paraproteins, or other circulating immune complexes (CICs) or for lipemic or hemolyzed samples due to the unpredictable degree of nonspecific light scatter these sample types may generate. The results obtained from measuring IgG subclasses should not be used in assessing atopy in allergic patients.
Rejection Criteria
Gross lipemia; hemolysis
Additional Instructions
Performing Laboratory Reference Laboratory
TagsIGG4