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Test Code BRUTA Brucella Total Antibody Confirmation, Agglutination, Serum

Reporting Name

Brucella Ab, Agglutination, S

Useful For

Diagnosis of brucellosis

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Supplies: Sarstedt Aliquot Tube 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 14 days
  Frozen  14 days

Reference Values

<1:80

Day(s) Performed

Wednesday, Friday

CPT Code Information

86622

LOINC Code Information

Test ID Test Order Name Order LOINC Value
BRUTA Brucella Ab, Agglutination, S 19053-8

 

Result ID Test Result Name Result LOINC Value
8112 Brucella Ab, Agglutination, S In Process

Interpretation

The Centers for Disease Control and Prevention recommends that specimens testing positive or equivocal for IgG or IgM by a screening enzyme immunoassay (EIA) be confirmed by a Brucella-specific agglutination method.

 

Titers below 1:80 are seen in normal, healthy populations. Titers of 1:80 or greater are often considered clinically significant (1); however, a 4-fold or greater increase in titers between acute and convalescent phase sera is required to diagnose acute infection.

 

Positive results by a screening EIA that are not confirmed by Brucella-specific agglutination may represent false-positive screening results. If clinically indicated, a new specimen should be tested after 7 to 14 days.

Report Available

2 to 7 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus OK

Method Name

Agglutination

Forms

If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.