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HelpTest Code AMGEN Mycoplasma genitalium, Transcription-Mediated Amplification, Urine or Urogenital Swab
Necessary Information
Specimen source is required.
Specimen Required
Submit only 1 of the following specimens:
Swab specimen must be collected using an Aptima Collection Unisex Swab or Aptima Collection Multitest Swab. These swabs are contained in the Aptima Collection Kit.
Specimen Type: Endocervix/cervix
Supplies: Aptima Unisex Swab Collection Kit (T583)
Container/Tube: Aptima Unisex Swab
Specimen Volume: Swab
Collection Instructions:
1. Specimens must be collected using the Aptima Unisex Swab Collection Kit
2. Use cleaning swab (white shaft) to remove excess mucus from endocervix/cervix.
3. Discard the cleaning swab.
4. Insert second swab (blue shaft) 1 to 1.5 cm into endocervical canal and rotate swab gently for 30 seconds. Avoid touching vaginal wall when removing swab.
5. Place the blue shaft swab into transport tube provided in collection kit.
6. Snap off swab at score line so swab fits into closed tube.
7. Cap tube securely, and label tube with patient's entire name and collection date and time.
8. Maintain swab container at 2 to 30° C (refrigerate temperature is preferred) within 60 days of collection. If longer storage is needed, freeze at -20 to -70° C for an additional 90 days.
Specimen Type: Vaginal
Supplies: Aptima Multitest Swab Collection Kit (T584)
Container/Tube: Aptima Multitest Swab
Specimen Volume: Swab
Collection Instructions:
1. Specimens must be collected using the Aptima Multitest Swab Collection Kit.
2. Insert swab (pink shaft) about 5 cm past introitus and rotate gently for 30 seconds.
3. Place swab into transport tube provided in collection kit. Snap off swab at score line so swab fits into closed tube.
4. Cap tube securely, and label tube with patient's entire name and collection date and time.
5. Maintain swab container at 2 to 30° C (refrigerate is preferred temperature) within 60 days of collection. If longer storage is needed, freeze at -20 to -70° C for an additional 90 days.
Specimen Type: Urethra (Male patients only)
Supplies: Aptima Unisex Swab Collection Kit (T583)
Container/Tube: Aptima Unisex Swab
Specimen Volume: Swab
Collection Instructions:
1. Specimens must be collected using the Apitma Unisex Sab Collection Kit.
2. Patient should not have urinated for at least 1 hour prior to collection.
3. With a rotating movement, insert swab (blue shaft) 2 to 4 cm into urethra.
4. Once inserted, rotate swab gently at least 1 full rotation using sufficient pressure to ensure swab comes in contact with all urethral surfaces. Allow swab to remain inserted for 2 to 3 seconds.
5. Place swab in transport tube provided in collection kit. Snap off swab at score line so swab fits into closed tube.
6. Cap tube securely, and label tube with patient's entire name and collection date and time.
7. Maintain swab container at 2 to 30° C (refrigerate is preferred temperature) within 60 days of collection. If longer storage is needed, freeze at -20 to -70° C for an additional 90 days.
Specimen Type: Urine
Supplies: Aptima Urine Transport Tube (T582)
Container/Tube: Aptima Urine Specimen Transport Tube
Specimen Volume: 15 to 20 mL
Collection Instructions:
1. Patient should not have urinated for at least 1 hour prior to specimen collection.
2. Patient should collect first portion of random voided urine (first part of stream) into a sterile, plastic, preservative-free container.
3. Within 24 hours of collection, transfer 2 mL of urine into the Aptima Urine Specimen Transport Tube using the disposable pipette provided. The correct volume of urine has been added when the fluid level is between the black fill lines on the urine transport tube.
4. Place the labels on the transport tube so the black fill lines are still visible for volume confirmation at Mayo Clinic Laboratories.
5. Maintain urine specimen transport container at 2 to 30° C (refrigerate is preferred temperature) within 30 days of collection. If longer storage is needed, freeze at -20 to -70° C up to an additional 90 days.
Specimen Type: Penile/meatal
Supplies: Aptima Multitest Swab Collection Kit (T584)
Container/Tube: Aptima Multitest Swab
Specimen Volume: Swab
Collection Instructions:
1. Specimens must be collected using the Aptima Multitest Swab Collection Kit.
2. Roll the swab (pink shaft) just at the tip or outside the opening to the penis. Be sure to roll the swab completely around the opening to get the best sample.
2. Immediately place the swab into the collection tube.
3. Carefully break the swab shaft at the score line and recap the tube.
4. Cap tube securely and label tube with patient's entire name and collection date and time.
5. Maintain swab container at 2 to 30° C (refrigerate is preferred temperature) within 60 days of collection. If longer storage is needed, freeze at -20 to -70° C for an additional 90 days.
Forms
If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.
Secondary ID
616513Useful For
Detecting Mycoplasma genitalium in cases of suspected infection
This test is not intended for use in medico-legal applications.
Highlights
This test is approved by the US Food and Drug Administration for performance on vaginal swabs, endocervical swabs, female/male urine, male urethral swabs, and penile/meatal swabs.
Method Name
Transcription-Mediated Amplification
Reporting Name
Mycoplasma genitalium, TMA, VariesSpecimen Type
VariesSpecimen Minimum Volume
Urine-first void: 2 mL
Swabs (endocervical, urethral, vaginal, penile/ meatal): 1 swab
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Varies | APTIMA VIAL | |
Reject Due To
| Midstream urine specimen Clean catch urine specimen Overfilled or underfilled urine transport tubes Specimen collected into a SurePath Prep device or ThinPrep vial Transport tubes containing a cleaning swab or more than 1 swab |
Reject |
Clinical Information
Mycoplasma genitalium, an under-recognized sexually transmitted infection (STI), causes acute and chronic non-gonococcal urethritis, cervicitis, and pelvic inflammatory disease. Due to its growing prevalence, M genitalium was cited as an emerging public health threat by the Centers for Disease Control and Prevention (CDC) in 2015. In high-risk populations, prevalence has been reported as high as 9% to 24% in male patients and 11% to 16% in female patients. M genitalium is commonly misdiagnosed as other STIs (eg, Chlamydia trachomatis or gonorrhea), which can lead to improper treatment of the underlying cause and an increase in duration of infection. In 2021, the CDC updated their STI guidelines to recommend that men with recurrent non-gonococcal urethritis and women with recurrent cervicitis and/or pelvic inflammatory disease should be tested for M genitalium.
Reference Values
Negative
Interpretation
A positive result indicates the presence of nucleic acid from Mycoplasma genitalium and strongly supports the diagnosis of a M genitalium infection.
A negative result indicates that nucleic acid from M genitalium was not detected in the specimen.
A result of inconclusive indicates that a new specimen should be collected.
The predictive value of an assay depends on the prevalence of the disease in a specific population. In settings with a high prevalence of sexually transmitted infections, positive assay results have a high likelihood of being truly positive. In settings with a low prevalence of sexually transmitted infections, or in any setting in which a patient's clinical signs and symptoms or risk factors are inconsistent with urogenital infection, positive results should be carefully assessed, and if appropriate, the patient retested by other methods.
Cautions
Care must be taken to avoid cross-contamination during handling of specimens.
This test does not detect other Mycoplasma or Ureaplasma species.
This test is intended for clinical monitoring or management of patients; it is not intended for use in medico-legal applications.
Appropriate specimen collection and handling are necessary for optimal assay performance.
Results should be interpreted in conjunction with other laboratory and clinical findings.
A negative test result does not exclude the possibility of infection. Improper specimen collection, concurrent antibiotic therapy, presence of inhibitors, or low numbers of organisms in the specimen (ie, below the sensitivity of the test) may cause false-negative test results.
In low prevalence populations, positive results must be interpreted carefully as false-positive results may occur more frequently than true-positive results in this setting.
In general, this assay should not be used to assess therapeutic success or failure, since nucleic acids from these organisms may persist for 3 weeks or more following antimicrobial therapy.
The effects of use of tampons, douching, specimen types other than those listed in Specimen Required, and specimen collection variables have not been determined.
Testing of urine specimens with this method is not intended to replace cervical exam and endocervical sampling for diagnosis of urogenital infection; infections may result from other causes or concurrent infections may occur.
Interference in assay results was observed when mucus at a final concentration of 0.3% weight/volume was added to clinical specimen matrix. Interference was not observed when mucus at a final concentration of 0.03% weight/volume was added to clinical specimen matrix.
Performance of the assay has not been evaluated in individuals younger than 15 years of age.
Clinical Reference
Waites KB, Crabb DM, Ratliff AE, Geisler WM, Atkinson TP, Xiao L. Latest advances in laboratory detection of mycoplasma genitalium. J Clin Microbiol. 2023;61(3):e0079021. doi:10.1128/jcm.00790-21
Method Description
The HOLOGIC APTIMA Combo 2 Assay combines the technologies of target capture, transcription-mediated amplification, and dual kinetic assay. The detection of the ribosomal RNA amplification product sequences (amplicon) is achieved using nucleic acid hybridization. Single-stranded chemiluminescent DNA probes are labeled and combined with amplicon to form stable RNA:DNA hybrids. Light emitted from the labeled RNA:DNA hybrids is measured as photon signals in a luminometer.(Package insert: APTIMA Mycoplasma genitalium Assay. AW-17946 Hologic, Inc; Rev 003, 03/2022)
Day(s) Performed
Monday through Sunday
Report Available
1 to 4 daysSpecimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
87563
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| AMGEN | Mycoplasma genitalium, TMA, Varies | 100706-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| AMGES | Specimen Source: | 31208-2 |
| 616592 | Mycoplasma genitalium Result | 100706-1 |