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Neisseria gonorrhoeae Antigen Detection (Genital Specimen)

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

This test checks for the presence of *Neisseria gonorrhoeae* bacteria, which causes gonorrhea—a sexually transmitted infection (STI). It’s used to screen for infection in genital areas.

Quick summary

["This test helps detect gonorrhea early, supporting timely treatment and preventing complications."]

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

Key facts at a glance

LOINC
31905-3
Short code
N gonorrhoea Ag Genital Ql
Synonyms
N gonorrhoea Ag Genital Ql
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

Why This Test Is Done

Your healthcare provider may recommend this test if you have symptoms like unusual discharge, pain during urination, or bleeding between periods. It’s also used as a routine screening for sexually active individuals at higher risk, such as those with multiple partners or recent exposure to STIs.

How the Test Works

The test detects specific proteins (antigens) from *Neisseria gonorrhoeae* in a genital fluid sample, such as urine, vaginal, or cervical swab. Results are typically available within hours and are qualitative (positive or negative).

Sample Collection

A healthcare provider will collect a sample from your genital area using a swab or by collecting fluid (e.g., urine). If using a swab, you may experience mild discomfort, but it’s quick and painless. If urine is used, no preparation is needed.

What to Expect After Testing

After testing, you may receive results immediately or within a few days. If positive, follow-up care (e.g., antibiotics) will be provided promptly. If negative, retesting may be recommended if symptoms persist or risk factors remain.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Gonorrhea can lead to serious complications, including pelvic inflammatory disease (PID), infertility, or spread to other parts of the body if untreated. Early detection through screening helps prevent these risks and ensures proper treatment.

Short name

Gonorrhea Screening (Genital)

Frequently asked questions

How long does it take to get results?
Results are usually available within **hours** of testing, depending on the lab’s processing time. Some clinics may provide results on the same day.
Can I have sex while waiting for results?
Avoid sexual contact until you’ve received results and, if needed, completed treatment. This helps prevent spreading the infection to others.
What if my test is positive?
If positive, you’ll receive immediate guidance on antibiotics and may need to see a healthcare provider for follow-up care. Your partner(s) should also be tested and treated if exposed.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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