Line Blot Immunoassay for Antibodies to Neisseria meningitidis (Group C) and Other Pathogens
This test detects antibodies in your blood that may indicate past or current infection by certain bacteria, including *Neisseria meningitidis* group C, which can cause serious infections like meningitis.
["Helps identify possible infections that require medical attention or further testing."]
Key facts at a glance
- LOINC
- 90847-5
- Short code
- Zic4 Ab CSF Line blot-aCnc
- Synonyms
- Zic4 Ab CSF Line blot-aCnc
- Category
- chemistry
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- line-blot
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
The test uses a line blot method to detect specific antibodies against bacteria like *N. meningitidis* group C and other potential pathogens. Antibodies are your immune system’s way of recognizing and fighting infections. If your body has been exposed to these bacteria, your immune system will produce antibodies that can be detected in this test.
How the Test Works
A small blood sample is taken from your arm. The sample is then analyzed in a lab to identify the presence of antibodies linked to certain bacterial infections. The line blot technique creates visible lines if antibodies are present, indicating possible exposure.
Why It Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like fever, headache, stiff neck, confusion, or rash that could suggest meningitis or other infections. It may also be used in screening or follow-up for individuals at higher risk, such as those in close contact with someone who has a bacterial infection.
What to Expect Before the Test
No special preparation is needed. You may have a small bruise or slight discomfort from the blood draw, but it usually resolves quickly. If you’re on blood-thinning medication or have a bleeding disorder, let your provider know before the test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Line Blot Antibody Test (Meningitis Panel)
Frequently asked questions
This test helps determine if you’ve been exposed to certain bacteria that can cause serious infections. While antibodies suggest past exposure, they do not always mean you currently have an active infection. Results may guide further testing or treatment decisions, especially in high-risk situations.
How long will I need to wait for results?
Can I drink or eat before this test?
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