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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
IGA |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2512 Geisinger Epic ID: 15025 | |
SPECIMEN COLLECTION |
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Specimen type: |
Plasma or serum | |
Preferred collection container: |
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Specimen required: |
2 mL serum or plasma; minimum 0.2 mL. | |
Patient preparation: |
Fasting specimen preferred. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection. | |
Transport temperature: |
Refrigerated (preferred). Room temperature or frozen specimen also acceptable. | |
Specimen stability: |
Room temperature: 8 months. Refrigerated: 8 months. Frozen: 8 months. | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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Reference interval: |
< 1 year: 0-83 mg/dL 1 - < 4 years: 20-100 mg/dL 4 - < 7 years: 27-195 mg/dL 7 - <10 years: 34-305 mg/dL 10 - <19 years: 58-348 mg/dL 19 years and up: 70-400 mg/dL |
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CPT code(s): |
82784 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
IgA quantitation. | |
Methodology: |
Immunoturbidity |
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Synonyms: |
Immunoglobulin A
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Clinical significance: |
Increased IgA is associated with monoclonal IgA myeloma, respiratory and gastrointestinal infections, and malabsorption. Decreased IgA is found in selective IgA deficiency and in ataxia telangiectasia. | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu, PhD, DABCC Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 12/14/2022 | |