Neisseria gonorrhoeae Antigen Detection in Cerebrospinal Fluid by Immunoassay

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like severe headache, stiff neck, fever, or confusion, especially if you’ve been exposed to gonorrhea or have a known infection. It’s also used in certain cases of unexplained neurological symptoms or after a head injury.

What to Expect Before the Test

You’ll likely have a lumbar puncture (spinal tap) to collect the CSF. The procedure is quick but may cause temporary discomfort. No special preparation is needed, but inform your provider about any medications you’re taking.

What the Test Results Mean

A positive result means the test detected gonococcal bacteria in your CSF, which could indicate gonococcal meningitis. A negative result suggests no bacteria were found, but other causes of meningitis (like viral or bacterial infections) could still be present.

Possible Causes and Alternatives

If your test is negative but you still have symptoms, other infections (e.g., viral meningitis, tuberculosis, or other bacterial causes) may be investigated. Follow-up tests or cultures may be needed to identify the exact cause.