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Brucella antibodies (IgG, IgM)
| Item | Value | ||||||
|---|---|---|---|---|---|---|---|
| Approval req'd? | No | ||||||
| Available Stat? | No | ||||||
| Test code | BRUCI | ||||||
| Performed by | Focus via Quest | ||||||
| Sendout? | Yes | ||||||
| Method | Enzyme Immunoassay | ||||||
| Collection Instructions | If CF and/or 2-ME-resistance testing is desired the physician must complete the Special Serology form Click here for form Avoid hemolysis. |
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| Container type | Red top (Gold top acceptable) | ||||||
| Amount to Collect | 4 mL blood | ||||||
| Sample type | Serum | ||||||
| Preferred volume | 2 mL serum | ||||||
| Min. Volume | 0.8 mL serum | ||||||
| Processing notes | Allow sample to clot at room temperatur then centrifuge. Refrigerate aliquot. Order Quest # 10566N. | ||||||
| Ref Lab Rejection Criteria | Hemolysis, lipemia | ||||||
| Units | units | ||||||
| Normal range | < 0.80 U Interpretive criteria:
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| Stability | Room temperature 3 days, refrigerated 2 weeks, frozen at -20C 1 month | ||||||
| Turn around times | Set up 2x per week. Turn around 5-7 days. | ||||||
| Reflex? | If Brucella IgM result is ≥ 1.10, then Brucella Antibody, Agglutination will be performed at an additional charge | ||||||
| Additional information | Acute brucellosis is characterized by the appearance of Brucella-specific IgM within the first week of infection, followed by the appearance of Brucella-specific IgG after the second week. Levels of both IgM and IgG decline slowly over several months in conjunction with recovery. Persistence of high IgG levels with declining or absent IgM suggests chronic infection or relapse. If acute infection is suspected, Brucella culture and/or antibody testing of another serum specimen (collected 1-2 weeks after this specimen) may be warranted. | ||||||
| CPT coding | 86622-90 x2 | ||||||
| LOINC code | 44458-8 | ||||||
| Last Updated | 7/31/2012 4:19:46 PM | ||||||
| Entry Number | 144 |
If you have additional questions regarding this test, please call: 415-353-1667