Enterococcus Group Serology (Antibody Detection)
This test measures antibodies in your blood that may indicate past or current infection by certain types of *Enterococcus* bacteria, which can cause urinary tract, wound, or bloodstream infections.
["Helps assess exposure to specific bacteria linked to infections requiring medical attention."]
Key facts at a glance
- LOINC
- 27902-6
- Short code
- Enterococ IgG Ser-aCnc
- Synonyms
- Enterococ IgG Ser-aCnc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82784
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
The test detects antibodies (immunoglobulins) produced by your immune system in response to *Enterococcus* bacteria. Antibodies are proteins that help identify and fight infections. This test is not used to diagnose an active infection but may be part of an evaluation if you’ve had symptoms or exposure to these bacteria.
Why It Might Be Ordered
Your healthcare provider may order this test if you’ve had recent infections (such as urinary tract, wound, or bloodstream infections), if you’ve been exposed to *Enterococcus* bacteria, or if you’re being evaluated for recurrent infections. It can also be used in research or surveillance settings.
How the Test Works
A small blood sample is drawn, and the serum or plasma is tested for specific antibodies against *Enterococcus* using an immunoassay method. This method detects the presence of these antibodies by measuring their interaction with known bacterial antigens.
What to Expect Before the Test
No special preparation is needed. You may eat and drink normally, but inform your provider if you’re on blood-thinning medications or have a history of bleeding disorders.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Positive antibody results suggest past exposure to *Enterococcus* bacteria, which may indicate a history of infection. However, they do not confirm an active infection. High antibody levels could be relevant in diagnosing recurrent infections, guiding treatment decisions, or monitoring immune response in certain conditions. Always discuss results with your healthcare provider.
Short name
Enterococcus Antibodies (Serum/Plasma)
Frequently asked questions
What does a positive result mean?
Can this test diagnose an active infection?
How long does it take to get results?
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