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Test Name:
Bartonella henselae IgG Antibody, by IFA
- SBMF No:
45358 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
HENS G - ABN:
Not required - CPT Code:
86611 - LOINC Code:
6954-2 - Ref Lab Test No:
0050091 - Also Known As:
Cat Scratch Fever IgG Antibody - Also See:
44882 Bartonella henselae and B. quintana IgG and IgM Antibodies, by IFA
44434 Bartonella henselae IgG and IgM Antibodies, by IFA - Spec Type:
Serum - Spec Container:
Gold top (SST) or red top (serum) tube - Pref Vol:
1.0 mL - Min Vol:
0.5 mL
Pediatric Collection: 0.15 mL - Fasting:
No - Spec Collect:
Routine venipuncture
Parallel testing is preferred
Label samples as: "acute" or "convalescent"
Convalescent samples must be received within 30 days from receipt of acute samples - Spec Process:
Clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum to separate plastic tube - Spec Store Transport:
Refrigerated - Spec Stability:
After separation from cells:
48 hours room temperature (20-30°C)
2 weeks refrigerated (2-8°C)
1 year frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Severely lipemic, contaminated, or hemolyzed sample - Spec Remarks:
Separate serum from cells ASAP - Methodology:
Indirect Fluorescent Antibody (IFA) - Clinical Significance:
Refer to:
- Reference Range:
- Bartonella 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. - Interpretive Data:
- A low positive result suggests past exposure or infection, while a high positive result may indicate recent or current infection, but is inconclusive for diagnosis. Seroconversion between acute and convalescent sera is considered strong evidence of recent infection. The best evidence for infection is significant change on two appropriately timed specimens where both tests are done in the same laboratory at the same time.
- Additional Test Info:
ASR Compliance Statement:
Analyte specific reagents (ASR) are used in many laboratory tests necessary for standard medical care and generally do not require U.S. Food and Drug Administration (FDA) approval or clearance. 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, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. This test should not be regarded as investigational or for research use. - Day Run:
Mon, Thu - Time Reported:
2-9 days - Test Type:
INFECTIOUS ANTIBODY
