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Citrobacter-specific antibody (serum/plasma) by immunoassay

Published: August 9, 2026Updated: August 16, 2026

This test checks for antibodies in your blood that may indicate past exposure to *Citrobacter*, a type of bacteria sometimes linked to infections.

Quick summary

["Helps assess immune response to *Citrobacter* exposure, though not diagnostic for current infection alone."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

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?
No, this test does not diagnose an active infection. It only indicates whether your immune system has produced antibodies against *Citrobacter*. Active infections are typically diagnosed through cultures, symptoms, or other lab tests.
What does a positive result mean?
A positive result means your blood contains antibodies specific to *Citrobacter*, suggesting past exposure. This could be from a resolved infection, environmental exposure, or other immune activity. It does not indicate the severity or cause of any current health issue.
Can I get this test at home?
No, this test requires a blood sample collected by a healthcare professional in a clinical setting. Home blood tests for specific bacteria are not standard practice.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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