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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 on Tuesdays and Thursdays, with results reporting on the same day.

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

Spectrum Health Regional Laboratory, Grand Rapids, MI

Methodology

Turbidimetry

CPT

82784, 82787 x4

CDM Code

4058212, 4059001

Epic Test ID

1230100832

LOINC

IgG Total: 2465-3

IgG1: 2466-1

IgG2: 2467-9

IgG3: 2468-7

IgG4: 2469-5

Beaker LOINC

IGG TOTAL: 2465-3
IGG1: 2466-1
IGG2: 2467-9
IGG3: 2468-7
IGG4: 2469-5

Mayo Access Code

SHO8537

Reviewed Date

12/13/2021

Beaker Names

Beaker Procedure Name: IGG SUBCLASSES
Beaker Display Name: IgG Subclasses
BEAKER TEST NAME: IGG SUBCLASSES
BEAKER TEST REPORT NAME: IgG Subclasses

Beaker Synonyms

No synonym on file

Beaker Location, Container and Temperature

BW IMMUNOCHEM: GOLD TOP SST TUBE R (Preferred)-Refrigerated