Immunoglobulin A, Subclass 2

CPT: 82787
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Synonyms

  • IgA Subclass 2
  • IgA2

Expected Turnaround Time

3 - 5 days



Related Documents


Specimen Requirements


Specimen

Serum


Volume

1 mL


Minimum Volume

0.5 mL


Container

Red-top tube or gel-barrier tube


Collection

Transfer specimen to a plastic transport tube.


Storage Instructions

Maintain specimen at room temperature.


Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3


Causes for Rejection

Gross lipemia; hemolysis


Test Details


Use

Study IgA deficiencies in patients in association with recurrent sinopulmonary infections or repeated transfusions; study IgA elevations associated with IgA myeloma


Methodology

Immunologic


Reference Interval

See table.

Immunoglobulin A, Subclass 2

Age

Range (mg/dL)

0 to 11 m

0.9−8.6

1 to 2 y

1.8−15.8

3 to 6 y

4.7−26.2

7 to 12 y

5.8−32.4

13 to 17 y

9.5−41.9

≥18 y

13.4−97.9


LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
123051 IgA, Subclass 2 6939-3 123051 IgA, Subclass 2 mg/dL 6939-3

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