BARTONELLA HENSELAE AB IGG

LAB3137

Collect

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.

Unacceptable Conditions

Contaminated, hemolyzed, or severely lipemic specimens.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Performed

Mon, Thu

Methodology

Semi-Quantitative Indirect Fluorescent Antibody

Reported

1-8 days

Synonyms

  • Cat Scratch Fever Antibodies, IgG
  • LAB3137
  • HENS G

Ordering Recommendations

May assist in confirming a current or past Bartonella henselae infection.

Reference Interval

<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.

CPT Codes

86611
Collection

LAB3137

Collect

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.

Unacceptable Conditions

Contaminated, hemolyzed, or severely lipemic specimens.

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Ordering

Performed

Mon, Thu

Methodology

Semi-Quantitative Indirect Fluorescent Antibody

Reported

1-8 days

Synonyms

  • Cat Scratch Fever Antibodies, IgG
  • LAB3137
  • HENS G

Ordering Recommendations

May assist in confirming a current or past Bartonella henselae infection.
Result Interpretation

Reference Interval

<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.

Administrative

CPT Codes

86611

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