Sign in →

Epic Code LAB570 IgG Subclasses, Serum (Total IgG, IgG1, IgG2, IgG3 and IgG4)

Test Name Alias

Immunoglobulin G Subclasses | 8537

Interface Order Alias

10178

Collection Instructions

Specimen Collection: Blood

Container(s): Gold Top (Serum Separator-SST Gel)

Preferred Volume to Collect: 5.0 mL

Minimum Volume to Collect: 2.0 mL

Neonate Volume to Collect: 2.0 mL

Capillary collect ok: Yes

Microtainer acceptable: Yes

Collection Instructions:

  • Gently invert gold tube(s) 8 - 10 times to mix clot activator with blood.
  • Specimen should be processed within 2 hours – See Processing Instructions.

Processing Instructions (Laboratory, Outpatient or Off-site collection)

Processed Specimen: Serum

Centrifuge/Spin: Yes

Aliquot: No

Processing Instructions:

  • Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.

Transport Temperature: Refrigerate

Rejection Criteria

Specimen not centrifuged within 2 hours

Specimen Stability

Ambient: 8 hours

Refrigerate: 7 days (21 days if serum is aliquoted to separate transfer vial)

Frozen: aliquot serum for longer storage

Laboratory Retention: 7 days

Test Frequency

Test is run twice a week, on Tuesdays and Fridays.

Reference Range

Age IgG Total IgG 1 IgG 2 IgG3 IgG4 Units
0 - 5 Months 100 - 334 56 - 215 0 - 82 8 - 82 0 - 20 mg/dL
>5 - 9 Months 164 - 588 102 - 369 0 - 89 12 - 74 0 - 21 mg/dL
>9 - 15 Months 246 - 904 160 - 562 24 - 98 17 - 64 0 - 22 mg/dL
>15 - 24 Months 313 - 1170 209 - 724 35 - 105 22 - 55 0 - 23 mg/dL
>2 - 4 Years 295 - 1156 158 - 721 39 -176 17 - 85 0 - 49 mg/dL
>4 - 7 Years 386 - 1470 209 - 902 44 - 316 11 - 95 1 - 82 mg/dL
>7 - 10 Years 462 - 1682 253 - 1019 54 - 435 9 - 103 1 - 109 mg/dL
>10 - 13 Years 503 - 1719 280 - 1030 66 - 502 11 - 105 1 - 122 mg/dL
>13 - 16 Years 509 - 1580 289 - 934 82 - 516 20 - 103 1 - 122 mg/dL
>16 - 18 Years 487 - 1327 283 - 772 98 - 486 31 - 98 1 - 111 mg/dL
>18 Years 767 - 1590 341 - 894 171 - 632 18 - 106 2 - 121 mg/dL

 

Performing Department

Immunochemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

Methodology

Turbidimetry

CPT

82787, 82784×4

CDM Code

3018278701, 3018278403

Epic Test ID

1230100832

LOINC

IgG Total: 2465-3

IgG1: 2466-1

IgG2: 2467-9

IgG3: 2468-7

IgG4: 2469-5

Mayo Access Code

SHO8537

Reviewed Date

12/13/2022