Trichomonas Vaginalis (Aptima® Trichomonas Vaginalis Assay) -IVD
TEST: CPT: 87661
ThinPrep
Unisex Swab in female
Urine collection male or female
Storage Instructions
Causes for Rejection
Limitations
Methodology
CDC INFO
Expected Turnaround Time 1-4 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the report is sent to the ordering provider. Additional time should be allowed for confirmatory, or reflex tests.
Additional Documentation
Specimen Requirements
Specimen
Vaginal, endocervical, or male urethral swab, or cervical cells in liquid cytology vial.
Collection
Click on the images for a color guide
ThinPrep: follow the standard collection methods for ThinPrep Cytology collection.
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Multitest Vaginal Swab:
Care provider specimen: Collect vaginal fluid sample using the Gen-Probe® Aptima® Vaginal Swab Kit by contacting the swab to the lower third of the vaginal wall, rotating the swab for 10 to 30 seconds to absorb the fluid. Immediately place the swab into the transport tube and carefully break the swab shaft against the side of the tube. Tightly screw on the cap.
Patient self-collection instructions: Partially open the package. Do not touch the soft tip or lay the swab down. If the soft tip is touched, the swab is laid down, or the swab is dropped, use a new Aptima® Vaginal Swab Specimen Collection Kit. Remove the swab. Carefully insert the swab into the vagina about 2" past the introitus and gently rotate the swab for 10 to 30 seconds, making sure the swab touches the walls of the vagina so that moisture is absorbed by the swab. Withdraw the swab without touching the skin. Immediately place the swab into the transport tube and carefully break the swab shaft against the side of the tube. Tightly screw on the cap.
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Endocervical swab:
Remove excess mucus from the cervical os and surrounding mucosa using the cleaning swab (white shaft swab in the package with red printing). Discard this swab. Insert the specimen collection swab (blue shaft swab in the package with green printing) into the endocervical canal. Gently rotate the swab clockwise for 10 to 30 seconds in the endocervical canal to ensure adequate sampling. Withdraw the swab carefully; avoid contact with the vaginal mucosa. Remove the cap from the swab specimen transport tube and immediately place the specimen collection swab into the transport tube. Carefully break the swab shaft at the scoreline using care to avoid splashing of the contents. Recap the swab specimen transport tube tightly.
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Urine specimen: The patient should not have urinated for at least one hour prior to specimen collection. Direct patient to provide a first-catch urine (approximately 20 mL to 30 mL of the initial urine stream) into a urine collection cup free of any preservatives. Collection of larger volumes of urine may result in specimen dilution that may reduce test sensitivity; lesser volumes may not adequately rinse organisms into the specimen. Female patients should not cleanse the labial area prior to providing the specimen. Add urine to the Aptima® COMBO 2 urine collection device. The final volume must be between the two black lines on the device (about 2 mL).
Store and transport specimens at room temperature (15 to 30°C). DO NOT freeze.
Specimen with incorrect patient identification; unlabeled specimen; inappropriate specimen transport conditions; specimens received after prolonged delay from time of pickup (usually >72 hours); specimen leaked in transit; specimen in expired transport or incorrect transport device; specimens with inappropriate source for test requested; specimen with fixative or additives; Aptima® urine transport >30 days from collection; Aptima® urine transport with incorrect specimen volume; <15 mL urine submitted in sterile container; receipt of urine in sterile container >24 hours from collection; Aptima® swab transport >30 days from collection; Aptima® swab specimens with incorrect specimen volume; Aptima® swab specimen without a swab; cleaning swab (white-shaft swab) in Aptima® swab transport; any non−Gen-Probe® swab submitted in Aptima® transport device; wooden-shaft swab in transport device; transport device with multiple swabs; female urethral swab; bloody or grossly mucoid specimens; bacterial swabs; specimen in MDL OneSwab®, ProbeTec™ UPT transport; ProbeTec™ Q-swabs; UTM-RT
Test Details
Use
Diagnosis of Trichomonas vaginalis infections
The performance of the Trichomonas Vaginalis Assay has not been evaluated in adolescents less than 14 years of age.
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The Assay is not intended for the evaluation of suspected sexual abuse or for other medico-legal indications. For those patients for whom a false positive result may have adverse psycho-social impact, the CDC recommends retesting.
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Urine specimen is not recommended because of significantly lower detection rates in urine for Trichomonas.
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See Product insert for full list of limitations.
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Nucleic acid amplification (NAAT)
CDC Treatment resources:
NAAT tests are recommended by the CDC for detection. NAAT tests are not intended for use as treatment of cure because dead organisms can also be detected. If a patient fails treatment for Trichomonas and has had NO sexual partners, tinidazole is recommended. There are only two drugs for Trichomonas treatment: metronidazole and tinidazole.
