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25412 Bartonella Ab Panel, IgG & IgM (BART)

Bartonella Ab Panel, IgG & IgM (BART)
Test Code: BARTPAN
Synonyms/Keywords
​Bartonella henselae Abs, IgG/IgM; Bartonella quintana, IgG/IgM; Cat Scratch Disease, Bartonellosis, BART
Useful For

​Diagnosis of Bartonella infection, especially in the context of a cat scratch

This assay can be used as an aid to diagnose recent or past infection with Bartonella henselae or Bartonella quintana.

Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)​​
​Serum Serum Separator Tube (SST) Red Top Tube (RTT) ​0.5 mL ​0.15 mL ​
Specimen Stability Information
Specimen Type Temperature Time​​
​Serum ​ ​Refrigerated (preferred) ​30 days
​Frozen ​30 days
Rejection Criteria
Gross Hemolysis​​
​Gross Lipemia
Performing Laboratory Information
Performing Location Day(s) Test Performed Report Available Methodology/Instrumentatio​​n
​Mayo Clinic Laboratories ​Monday through Saturday ​1 to 3 days ​Immunofluorescence Assay (IFA)
Reference Lab
Mayo Clinic Laboratories
Reference Range Information
Performing Location Reference Range​​
Mayo Clinic Laboratories​

​Bartonella henselae

IgG: <1:128

IgM: <1:20

Bartonella quintana

IgG: <1:128

IgM: <1:20​

Interpretation

A positive immunofluorescence assay (IFA) IgM (titer >1:20) suggests a current infection with either Bartonella henselae or Bartonella quintana.

A positive IgG (titer >1:128) suggests a current or previous infection. Increases in IgG titers in serial specimens suggest active infection.

Normal serum specimens usually have an IgG titer of less than 1:128. However, 5% to 10% of healthy controls exhibit a B henselae and B quintana titer of 1:128. Sera from healthy volunteers rarely show titers of 1:256 or greater. IgM titers in normal serum are typically less than 1:20. IgM titers at 1:20 or greater have not been seen in the normal population.

Molecular testing of tissue for Bartonella species nucleic acid is recommended in cases of suspected endocarditis.

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments​​
​86611 ​ ​4 ​Bartonella Ab Panel, IgG & IgM ​
Synonyms/Keywords
​Bartonella henselae Abs, IgG/IgM; Bartonella quintana, IgG/IgM; Cat Scratch Disease, Bartonellosis, BART
Ordering Applications
Ordering Application Description
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)​​
​Serum Serum Separator Tube (SST) Red Top Tube (RTT) ​0.5 mL ​0.15 mL ​
Specimen Stability Information
Specimen Type Temperature Time​​
​Serum ​ ​Refrigerated (preferred) ​30 days
​Frozen ​30 days
Rejection Criteria
Gross Hemolysis​​
​Gross Lipemia
Useful For

​Diagnosis of Bartonella infection, especially in the context of a cat scratch

This assay can be used as an aid to diagnose recent or past infection with Bartonella henselae or Bartonella quintana.

Reference Range Information
Performing Location Reference Range​​
Mayo Clinic Laboratories​

​Bartonella henselae

IgG: <1:128

IgM: <1:20

Bartonella quintana

IgG: <1:128

IgM: <1:20​

Interpretation

A positive immunofluorescence assay (IFA) IgM (titer >1:20) suggests a current infection with either Bartonella henselae or Bartonella quintana.

A positive IgG (titer >1:128) suggests a current or previous infection. Increases in IgG titers in serial specimens suggest active infection.

Normal serum specimens usually have an IgG titer of less than 1:128. However, 5% to 10% of healthy controls exhibit a B henselae and B quintana titer of 1:128. Sera from healthy volunteers rarely show titers of 1:256 or greater. IgM titers in normal serum are typically less than 1:20. IgM titers at 1:20 or greater have not been seen in the normal population.

Molecular testing of tissue for Bartonella species nucleic acid is recommended in cases of suspected endocarditis.

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Report Available Methodology/Instrumentatio​​n
​Mayo Clinic Laboratories ​Monday through Saturday ​1 to 3 days ​Immunofluorescence Assay (IFA)
Reference Lab
Mayo Clinic Laboratories
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments​​
​86611 ​ ​4 ​Bartonella Ab Panel, IgG & IgM ​
For most current information refer to the Marshfield Laboratory online reference manual.