Find Locations
For hours, walk-ins and appointments.Synonyms
- IgG Subclass 2
- IgG2
Special Instructions
State patient's age on the request form.
Expected Turnaround Time
3 - 5 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Information
Related Documents
Specimen Requirements
Specimen
Serum
Volume
1 mL
Minimum Volume
0.4 mL
Container
Red-top tube or gel-barrier tube
Collection
Transfer specimen to a plastic transport tube.
Storage Instructions
Room temperature
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 13 days |
Refrigerated | 13 days |
Frozen | 13 days |
Freeze/thaw cycles | Stable x3 |
Causes for Rejection
Gross lipemia; hemolysis
Test Details
Use
Evaluate antipolysaccharide antibodies, sinopulmonary infections, immunodeficiency syndrome, and patients who demonstrate a poor response to carbohydrate antigens (group A strep, pneumococcus)
Limitations
This procedure is not suitable for the measurement of samples containing rheumatoid factor, paraproteins, other circulating immune complexes (CICs), or for lipemic or hemolyzed samples due to the unpredictable degree of nonspecific light scatter these sample types may generate. The results obtained from measuring IgG subclasses should not be used in assessing atopy in allergic patients.
Methodology
Immunologic
Reference Interval
See table.
Age | Range (mg/dL) |
|---|---|
Cord | 143−453 |
0 to 2 m | 40−167 |
3 to 5 m | 23−147 |
6 to 8 m | 37−60 |
9 to 35 m | 30−327 |
3 to 4 y | 54−271 |
5 to 6 y | 68−327 |
7 to 8 y | 84−355 |
9 to 10 y | 94−389 |
11 to 12 y | 90−450 |
13 to 14 y | 115−445 |
15 to 17 y | 122−505 |
18 to 19 y | 133−509 |
>19 y | 130−555 |
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 160515 | IgG, Subclass 2 | 2467-9 | 160515 | IgG, Subclass 2 | mg/dL | 2467-9 |
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The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf