Neisseria gonorrhoeae (GC) is a common sexually transmitted infection and may be asymptomatic. N. gonorrhoeae primarily causes a lower genital tract infection, but if untreated, may cause disseminated disease or pelvic inflammatory disease with endometritis, salpingitis, pelvic peritonitis, and tubo-ovarian abscesses.
This test should be ordered in patients with symptoms of cervicitis or urethritis, as well as for screening asymptomatic patients.
Urine collections:
Aptima Multitest swab transport media
Oral/mouth, rectal or vaginal sample collections
or
Xpert Swab Specimen Collection Kit (Allina Only, Workday # 418585)
If patient has had a hysterectomy, collect vaginal or urine.
Vaginal specimens:
Note: Large white swab in Xpert Swab kit is for clearing excessive mucus or discharge if present prior to collecting specimen with the smaller scored swab.
Aptima Multitest swab specimen collection kit
or
Xpert Swab Specimen Collection Kit
Direct patient to provide first-catch urine (approximately 20 to 30 mL of initial urine stream) into urine collection cup free of any preservatives.
Urine should preferably be transferred to urine specimen transport at the bedside to reduce risk of molecular cross contamination. If poured off in the lab change gloves before and after opening urine.
Aptima urine specimen collection kiit
or
Xpert Urine Specimen Collection Kit (Allina Only, Workday # 418586)
Swab:
Ambient (preferred) - 60 days
Refrigerated - 60 days
Frozen - NO
Urine:
Ambient (preferred) - 30 days
Refrigerated - 30 days
Frozen - NO
Nucleic Acid Amplification Test (NAAT)
Negative (Not Detected)
|
|
Neisseria gonorrhoeae probe versus patient infected status |
|
|
Specimen |
Sensitivity (%) |
Specificity (%) |
|
Female urine |
91.3 |
99.3 |
|
Female vaginal swab |
97.3 |
99.2 |
|
Male urine |
98.5 |
99.6 |
|
Overall |
97.8 |
98.9 |