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IgG Subclass

Test Code: 401001P
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Clinical Utility

For the quantification of human IgG subclass immunoglobulins. These immunology tests are used by physicians to evaluate patients with recurrent and chronic infection.

Procedure

Nephelometry using specific antiserum to each immunoglobulin subclass. The assay calibrators are referenced to the CRM470 reference material. This test has been cleared or approved for diagnostic use by the U.S. Food and Drug Administration.

2-5 business days from receipt of specimen

Specimen Type Order Code CPT Code NY Approved Volume Assay Range Special Instructions
serum 401001P 82787 Yes 0.5 mL (min. 150 uL) See IgG Subclass Guide
  • Collect 1.5 mL, ambient, frozen, or refrigerated, no speical shipping requirements.

Age Related Reference Range:

Age: IgG1 IgG2 IgG3 IgG4
0 - 1 year 170 - 950 22 - 440 13 - 69 1 - 120
2 - 3 year 290 - 1065 28 - 315 4 - 71 1 - 90
4 - 5 year 330 - 1065 57 - 345 8 - 126 2 - 116
6 - 7 year 225 - 1100 42 - 375 9 - 107 1 - 138
8 - 9 year 390 - 1235 61 - 430 10 - 98 1 - 95
10 - 11 year 380 - 1420 73 - 455 16 - 194 1 - 153
12 - 13 year 165 - 1440 71 - 460 12 - 178 2 - 143
14 - 18 year 155 - 1020 44 - 495 8 - 209 5 - 164
> 18 year 240 - 1118 124 - 549 21 - 134 5 - 90

Specimens are approved for testing in New York only when indicated in the Specimen Information field above.

The CPT codes provided are based on Viracor Eurofins' interpretation of the American Medical Association's Current Procedural Terminology (CPT) codes and are provided for general informational purposes only. CPT coding is the sole responsibility of the billing party. Questions regarding coding should be addressed to your local Medicare carrier. Viracor Eurofins assumes no responsibility for billing errors due to reliance on the CPT codes illustrated in this material.

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