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Test Code Billings Clinic: 9008 Trichomonas RNA Amp

Important Note

This test cannot be used for specimens collected from men.  Please order Mayo Test Trichomonas vaginalis, Misc. (Mayo MTRNA).  Billings Clinic test code is 6846.

Performing Laboratory

Billings Clinic Laboratory: Molecular Microbiology

Useful For

  • The AptimaTM Trichomonas vaginalis assay is an in vitro qualitative nucleic acid amplification test for the detection of ribosomal RNA from Trichomonas vaginalis and is used as an aid in the diagnosis of trichomoniasis using the PantherTM System.
  • This assay may be used to test the specimens from symptomatic or asymptomatic patients.

Methodology

Target Capture, Transcription Mediated Amplification (TMA) and Hybridization Protection Assay (HPA) 

Specimen Requirements

The following swab specimens must be collected using an APTIMA Collection Unisex Swab. These swabs are contained in the APTIMA Collection Kit.

 

Specimen Type: Endocervix

Container/Tube: APTIMA Collection Unisex Swab

Specimen Volume: Swab

Collection Instructions:

  1. Use cleaning swab (white shaft) to remove excess mucus from endocervix and discard.
  2. 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.
  3. Place second 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 date and time of collection.
  5. Transport and store swab container at 2 to 30° C (refrigerate is preferred temperature). 
  6. Swab is stable at 2 to 30° C for 60 days. If longer storage is needed, freeze at -20 to -70 degrees C for 12 months.

 

Specimen Type: Vaginal (Self-collection)

Please see "Vaginal Self-Collection Guide" under "Resources"

Storage/Stability

Aptima Collection Swab  - 5 days room temperature

Reject Due To

  • Specimens collected using a swab that is not an Aptima Collection Kit swab
  • Specimens collected from male patients

Reference Values

Negative

 

Interpretation:

  • Negative        Negative for Trichomonas vaginalis
  • Positive          Positive for Trichomonas vaginalis
  • Invalid            This specimen may be grossly contaminated with mucous or another interfering  substance which prevented adequate amplification.  Please resubmit.
  • Equivocal       Indeterminate - a second specimen should be submitted to determine infection status

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding

87661 - Infectious agent detection by nucleic acid (DNA or RNA); Trichomonas vaginalis, amplified probe technique

LOINC Code Information

Reporting Name LOINC Code
T. vaginalis, RNA 46154-1