Bartonella Species Antibodies (IgG, IgM) with Reflex to Titers Test
This panel measures IgG and IgM antibodies to both Bartonella henselae and Bartonella quintana in a blood sample. Positive results reflex automatically to titer testing.
About this test
The panel measures IgG and IgM antibodies against Bartonella henselae and Bartonella quintana using immunofluorescence assay on a serum sample. Positive results reflex automatically to titer testing to quantify antibody levels.
Quest notes that confirming recent or current infection may require testing of serial specimens to show a four-fold rise in IgG titers or the presence of IgM, that IgG cross-reactivity between the two species is common, and that results are interpreted alongside clinical history and examination findings.
Test details
| Collection | Quest patient service center |
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Quest resources
Additional details
This test isn't part of the Celio Health store at the moment, so it can't be ordered or requested here. The test menu lists everything that can.
Laboratory results should always be interpreted by a licensed clinician who knows your health history. This page is information about a test, not medical advice.
Frequently asked questions
What does this panel measure?
It measures IgG and IgM antibodies to Bartonella henselae and Bartonella quintana in a serum sample using immunofluorescence assay.
How is the sample collected?
The test uses a 1 mL serum sample from a routine blood draw.
Do I need to prepare for this test?
No preparation instructions are listed for this test, though people follow any instructions their ordering clinician provides.
What happens if antibodies to either species are detected?
A positive result for either species and antibody class reflexes automatically to titer testing to quantify the antibody level.
Can this test distinguish between the two Bartonella species?
Not reliably on its own. Quest notes that IgG cross-reactivity between Bartonella henselae and Bartonella quintana is common, so results are read alongside clinical history and exam findings.