Citrobacter-specific antibody (serum/plasma) by immunoassay
This test checks for antibodies in your blood that may indicate past exposure to *Citrobacter*, a type of bacteria sometimes linked to infections.
["Helps assess immune response to *Citrobacter* exposure, though not diagnostic for current infection alone."]
Key facts at a glance
- LOINC
- 88254-8
- Short code
- Citrobac sp ompA+mrkC Bld Pos Ql Probe
- Synonyms
- Citrobac sp ompA+mrkC Bld Pos Ql Probe
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
This test detects the presence of antibodies specific to *Citrobacter* bacteria in your serum or plasma. Antibodies are proteins your immune system produces in response to foreign substances, such as bacteria. This test is not used to diagnose an active infection but may be part of an evaluation for immune-related conditions or exposure history.
Why It Might Be Ordered
Your healthcare provider may order this test if you have symptoms suggestive of a bacterial infection (e.g., fever, abdominal pain), if you’ve had recent exposure to *Citrobacter*-related environments, or if you’re part of a study investigating immune responses to specific bacteria.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample, typically drawn from a vein in your arm. If you’re on blood thinners, inform your provider beforehand to avoid complications.
What to Expect During the Test
The blood sample is processed in a lab using an immunoassay method to detect *Citrobacter*-specific antibodies. Results are qualitative (positive/negative) and not used to measure antibody levels directly.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Antibody to *Citrobacter* bacteria
Frequently asked questions
Will this test show if I have an active *Citrobacter* infection?
What does a positive result mean?
Can I get this test at home?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy