Gonorrhoea infection is diagnosed by detecting Neisseria gonorrhoeae from anatomical sites appropriate to the patient’s sexual practices. For example:
- If the patient has had receptive anal sex, oro-anal sex, rimming or fingering, collect a rectal swab.
- If the patient has had receptive oral sex, take a throat swab.
Swabs for gonococcal culture should always be collected if the patient has discharge and the specimen is collected in the metropolitan area or can reach a laboratory within 24 hours of collection. Culture results are essential for anti-microbial resistance surveillance.
If the patient presents with a positive self-test result, ensure it is confirmed with a laboratory test.
| Site |
Specimen |
Test |
Notes |
| Penile Urethra |
First void urine (FVU) - first part of the urine stream, it can be done at any time and does not have to be the first void of the day. |
Nucleic acid amplification test (NAAT) |
See STI self-testing card for collection instructions |
| Vagina |
Self-obtained lower vaginal swab (SOLVS) |
NAAT1 |
See STI self-testing card for collection instructions |
| Cervix |
Clinician-collected endocervical swab
|
NAAT1 and culture2
|
Recommended for patient with symptoms of cervicitis or PID
|
| Rectum |
Clinician- or self-collected rectal swab |
NAAT1 +/- culture2 |
See STI self-testing card for collection instructions in asymptomatic patients
Collect NAAT and culture swabs in patients with anorectal symptoms
|
| Throat |
Clinician-collected throat swab |
NAAT1 +/- culture2 |
See page 2 of STI self-testing card for instructions on throat swab collection
Collect NAAT and culture swabs in asymptomatic patients
Collect NAAT and culture swabs in patients with pharyngeal symptoms and/or pharyngeal discharge/pus
|
| Conjunctiva |
Clinician-collected conjunctival swab |
NAAT1 and culture2 |
Collect NAAT and culture swabs in patients with conjunctival discharge |
1. Dry swab, no transport medium
2. Swab with transport medium
Point of care NAAT testing for gonorrhoea is available in some WA Aboriginal Community Controlled Health Services. If gonorrhoea was diagnosed on a point of care test, it is essential to send the specimen to a laboratory for molecular-based antimicrobial resistance testing because antimicrobial resistant strains are emerging with few treatment options in the future being available.