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Test Code IGG Immunoglobulin G

Specimen Type

Blood

Container

Mint green top with gel separator

Preferred Volume

4 mL

UCMC Collection Instructions

 Once per admit.  If monitoring an identified paraprotein, then once per week.

Availability

Monday – Friday 7:00 a.m. – 3:00 p.m.

Turnaround Time

24 – 72 hrs

STAT Availability

Not Available

Test Methodology

Immunoturbidimetry

CPT Code

82784

Test Includes

quantitative determination of IgG in plasma

Reference Range

Age      Value (mg/dL)

> 14Y   800-1700
12        770-1510
11        850-1300
10        730-1350
9          760-1330
8          730-1410
7          570-1320
6          650-1410
5          640-1420
4          540-1440
3          500-1360
2          520-1080
7M       350-1180
4M       190-860
0          750-1500

Critical Results

None

Test Limitations

It is known that the so-called paraproteins secreted in monoclonal gammopathies (monoclonal immunoglobulinemia) may differ from the respective immunoglobulins of polyclonal origin by amino acid composition and size. This may impair the binding to antibody and hence impair accurate quantitation.

Minimum Volume

2 mL

Fee Code

43056

Synonyms

IgG