Test directory: B. pertussis Ab, IgM Rfx Immunoblot

Ordering Code7908
Test NameB. pertussis Ab, IgM Rfx Immunoblot
AliasBordetella pertussis Ab,IgM by ELISA Rfx to Immunoblot
B. pertussis IgM reflex
Pertussis IgM Ab ELISA reflex to Immunoblot
Preferred SpecimenSerum
Preferred ContainerSST (Gold)
Optimum Volume1 mL
Collection InstructionsParallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."
If Bordetella pertussis Antibody, IgM by ELISA is 1.2 IV or greater, then Bordetella pertussis IgM Immunoblot testing will be added.
Handling InstructionsSeparate serum from cells within 2 hours of collection
Transport RequirementsOahu: Ambient
Airline: Refrigerated
Specimen StabilityAmbient: 48 Hours
Refrigerated: 14 Days
Frozen: 1 Year
Stability applies ONLY to serum aliquots
Rejection CriteriaHemolyzed, Icteric, Lipemic, Bacterially contaminated, heat-inactivated, or turbid specimens
Avail. StatNO
Analytic Time8 Days
MethodologySemi-Quantitative Enzyme-Linked Immunosorbent
Assay/Qualitative Immunoblot
Reference Lab ARUP Laboratories

Reference range(s)

The reference ranges listed below are valid on this date of May 3, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
B. pertussis Ab, IgM by ELISAALLIV

Interpretive...
Interpretive Information: 0.9 IV or less: Negative - No significant level of detectable B
pertussis IgM antibody
1.0 - 1.1 IV: Equivocal - Repeat testing in 10-14 days may be helpful
1.2 IV or greater: Positive - IgM antibody to B. pertussis detected, which may indicate a current or recent exposure/immunization to B
pertussis

Recommend that treatment decisions be based on the result of the
B. pertussis IgM Immunoblot test instead of the ELISA test

B. pertussis IgM test by ELISA may produce false-positive results

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US
Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes

See report.
Note1

Note1:


Interpretive Information: 0.9 IV or less: Negative - No significant level of detectable B
pertussis IgM antibody
1.0 - 1.1 IV: Equivocal - Repeat testing in 10-14 days may be helpful
1.2 IV or greater: Positive - IgM antibody to B. pertussis detected, which may indicate a current or recent exposure/immunization to B
pertussis

Recommend that treatment decisions be based on the result of the
B. pertussis IgM Immunoblot test instead of the ELISA test

B. pertussis IgM test by ELISA may produce false-positive results

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US
Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes

See report..