Mycoplasma genitalium, NAA, Swab
Code:18012|CPT:87563|LOINC:69935-5, 11502-2
| Includes | Mycoplasma genitalium NAA PDF |
|---|
Analysis details
Methodology
- Nucleic acid amplification (NAA)
- Real-time polymerase chain reaction (RT-PCR)
Expected Turnaround Time
1–2 days
Special Instructions
- Whenever possible, collect the specimen before starting antibiotic therapy.
- For women, obtain the endocervical or vaginal swab before menstruation or 2–3 days after bleeding has ended.
- Men should not urinate for 3 hours prior to urethral swab collection.
- For male urine specimens, avoid urination and genital cleansing for 6 hours before collection.
How to use
The Mycoplasma genitalium, NAA, Swab test (also referred to as M. genitalium DNA NAAT or PCR) detects Mycoplasma genitalium DNA in urogenital specimens for the diagnosis of sexually transmitted infection. It assists in evaluating nongonococcal urethritis, cervicitis, and pelvic inflammatory disease, and in differential workups performed alongside testing for Chlamydia trachomatis, Neisseria gonorrhoeae, and Ureaplasma species. The assay may also be applied to document microbiologic response following antimicrobial treatment and for targeted screening of selected risk groups.
Limitations
Mycoplasma genitalium is a pathogenic mycoplasma that attaches to urogenital epithelial surfaces and is transmitted predominantly through sexual contact; vertical transmission can occur during pregnancy or delivery. Infection is often asymptomatic. In men, it is associated with nongonococcal urethritis. In women, reported manifestations include urethritis, cervicitis, vaginitis, endometritis, adnexitis, and pelvic inflammatory disease. Coinfection is common with Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, and Ureaplasma spp. Laboratory detection relies on nucleic acid amplification techniques, typically real-time PCR, that target organism-specific DNA sequences. Such assays provide analytic sensitivity suited to low organism burden in urogenital specimens and are preferred for diagnosing M. genitalium infection.
| Unit | qualitative |
|---|---|
| Reference interval | — |
| Indications | Evaluation after potential exposure or in patients with persistent urogenital inflammation when Mycoplasma genitalium infection is suspected, Preconception screening of both partners, Workup of infertility or recurrent miscarriage, Assessment related to ectopic pregnancy, Test-of-cure about 1 month after completing antimicrobial therapy, Individuals living with HIV infection |
Possible Causes of Abnormal Results
Decreased levels
- antibacterial therapy
Specimen Requirements
| Specimen | Semen |
|---|---|
| Container | Sterile Container (PCR Transport) |
| Storage Instructions | Room temperature, Refrigerated |
References
Kenny GE. Genital Mycoplasmas: Mycoplasma genitalium, Mycoplasma hominis, and Ureaplasma Species. In: Principles and Practice of Infectious Diseases. 6th ed. Philadelphia, PA: Churchill Livingstone; 2005:2701.
Non-chlamydial non-specific genital infection. In: Oxford Handbook of Genitourinary Medicine, HIV, and AIDS. 1st ed. Oxford University Press; 2005.
Gomberg MA, Solovyev AM, Aniskova IN. Treatment of urethritis caused by Mycoplasma genitalium. Attending Physician (Lechashchii Vrach). 2007;(7):12-15.
Khryanin AA, Reshetnikov OV. Current concepts of Mycoplasma genitalium. Russian Medical Journal. 2008;16(19):1236-1239.