Bartonella henselae (Cat Scratch) Antibodies, IgG & IgM by IFA
Ordering Recommendation

May assist in diagnosing cat scratch disease in patient with typical signs and symptoms and a compatible exposure history.

Semi-Quantitative Indirect Fluorescent Antibody
Mon, Thu
1-8 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Serum separator tube. 
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL) Parallel 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. 
Storage/Transport Temperature
Unacceptable Conditions
Contaminated, hemolyzed, or severely lipemic specimens. 
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles) 
Reference Interval
Test Number
Reference Interval
0050091Bartonella henselae Antibody, IgG by IFA<1:64  Negative - No significant level of Bartonella henselae IgG antibody detected.
1:64-1:128  Equivocal - Questionable presence of Bartonella henselae IgG antibody detected.  Repeat testing in 10-14 days may be helpful.
≥1:256  Positive - Presence of IgG antibody to Bartonella henselae detected, suggestive of current or past infection.
0050092Bartonella henselae Antibody, IgM by IFA< 1:16  Negative - No significant level of Bartonella henselae IgM antibody detected.
≥ 1:16  Positive - Presence of IgM antibody to Bartonella henselae detected, suggestive of current or recent infection.

Interpretive Data
Refer to individual components.

Compliance Statement A: For laboratory developed tests using a manufacturer labeled ASR as the reagent providing the specificity of the assay. Analyte Specific Reagent. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, the FDA has determined that such clearance or approval is not necessary.

Hotline History
Component Test Code*Component Chart NameLOINC
0050091Bartonella henselae Antibody IgG6954-2
0050092Bartonella henselae Antibody IgM6955-9
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
  • B henselae IgG
  • B henselae IgM
  • Bartonella henselae Abs
  • Cat Scratch Disease Ab Panel, Serum