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HelpTest Code Billings Clinic: 9495 Mayo: BORDG Bordetella pertussis Antibody, IgG, Serum
Reporting Name
B. pertussis Ab, IgG, SPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Useful For
Diagnosis of recent infection with Bordetella pertussis in patients with symptoms consistent with whooping cough for 2 or more weeks
This test should not be used in neonates, young infants or in children between the ages of 4 to 7 years as the routine childhood vaccine schedule may interfere with result interpretation.
This test should not be used as a test of cure, to monitor response to treatment, or to determine vaccine status.
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Ordering Guidance
This test should be ordered in patients with 2 or more weeks of symptoms consistent with whooping cough. Nucleic acid amplification testing for Bordetella pertussis should be used in patients who have been symptomatic less than 2 weeks; order BPRP / Bordetella pertussis and Bordetella parapertussis, Molecular Detection, PCR, Varies.
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: 1 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Specimen Type
SerumSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 30 days | |
| Frozen | 30 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
| Heat inactivated | Reject |
Reference Values
≥100 IU/mL (Positive)
40-<100 IU/mL (Borderline)
<40 IU/mL (Negative)
Reference values apply to all ages.
Interpretation
Negative (<40 IU/mL): No IgG antibodies to pertussis toxin (PT) detected. Results may be falsely negative in patients with less than 2 weeks of symptoms.
Borderline (40-<100 IU/mL): Recommend follow-up testing in 10 to 14 days if clinically indicated.
Positive (≥100 IU/mL): IgG antibodies to PT detected. Results suggest recent infection with or recent vaccination against Bordetella pertussis.
Day(s) Performed
Thursday
Report Available
Same day/1 to 7 daysTest Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
86615
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| BORDG | B. pertussis Ab, IgG, S | 42330-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| BIGG | B. pertussis IgG | 29659-0 |
| DEXBG | B.pertussis Value | 42330-1 |
Forms
If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.