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Test Code IGA Immunoglobulin A

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 IgA in plasma

Reference Range

Age Value (mg/dL)

> 14Y 100-490
12       100-325
11         91-225
10         70-222
9         108-200
8          74-260
7          65-240
6          83-217
5          52-220
4          52-210
3          45-135
2          36-165
7M      36-165
4M      10-96
1M        6-58
0        < 6

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

43055

Synonyms

IgA