Search our extensive Laboratory Test Directory to find test codes, ordering recommendations, specimen stability information, Test Fact Sheets, and more.
Recommendations when to order or not order the test. May include related or preferred tests.
Aid in diagnosis and monitoring of immune disorder due to IgA deficiency.
Methodology
Process(es) used to perform the test.
Quantitative Immunoturbidimetry
Performed
Days of the week the test is performed.
Wed, Sat
Reported
Expected turnaround time for a result, beginning when ARUP has received the specimen.
1-5 days
New York DOH Approval Status
Indicates test has been approved by the New York State Department of Health.
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Serum separator tube.
Specimen Preparation
Transfer 2 mL serum to an ARUP Standard Transport Tube. (Min: 0.7 mL)
Storage/Transport Temperature
Refrigerated
Unacceptable Conditions
Grossly hemolyzed or lipemic specimens
Remarks
Stability
After separation from cells: Ambient: Unacceptable; Refrigerated: 14 days; Frozen: 6 months
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Test Number
Components
Reference Interval
Immunoglobulin A
Age
Reference Interval (mg/dL)
0-2 years
2-126
3-4 years
14-212
5-9 years
52-226
10-14 years
42-345
15-18 years
60-349
19 years and older
68-408
Immunoglobulin A Subclass 1
Age
Reference Interval (mg/dL)
0-2 years
3-145
3-4 years
22-278
5-9 years
43-337
10-14 years
37-430
15-18 years
76-394
19 years and older
60-294
Immunoglobulin A Subclass 2
Age
Reference Interval (mg/dL)
0-2 years
1-15
3-4 years
3-44
5-9 years
7-56
10-14 years
1-109
15-18 years
14-54
19 years and older
6-61
Interpretive Data
Background information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
Compliance Category
FDA
Note
Additional information related to the test.
Hotline History
N/A
CPT Codes
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
Other names that describe the test. Synonyms.
IgA
IgA 1 and 2
IgA Subclasses with T otal IgA (Immunoglobulin A Subclasses (1&2))