Test Code LAB4836 TRICHOMONAS VAGINALIS BY PCR
Specimen Type
Urine in Xpert Urine Transport Reagent tube (yellow top)
Vaginal/endocervical/cervix swab in Xpert Swab Specimen Collection Tube (pink top)
Collection Instructions
Urine Specimen (Dirty) Collection Instructions:
- The patient should not have urinated for at least 1 hour prior to specimen collection. Patient should NOT cleanse genital area prior to collecting the specimen.
- Direct patient to provide first-catch urine (approximately 20 to 50 mL of the initial urine stream) into a urine collection cup free of any preservatives.
- Transfer approximately 7 mL of urine into the Xpert Urine Transport Reagent tube (yellow top) using the disposable transfer pipette up to the black dashed line (minimum volume 3mL).
- Tighten the cap securely on the BD Molecular Urine Sample Buffer tube.
- Invert the reagent tube 3 to 4 times to ensure that the specimen and reagent are well mixed.
- Label tube with the patient information.
- Ship to laboratory at room temperature.
Vaginal Specimen Collection Instructions:
· Collect swab prior to pelvic, speculum, or bimanual exam.
· No lubricant is used for the sample collection.
· Do not collect at the posterior fornix
- Discard the large cleaning swab. Partially peel open the FLOQSwab in collection kit. Carefully insert the FLOQSwab 2 inches (5 cm) into the vagina.
- Rotate the swab for 10 to 30 seconds. Ensure the swab touches the wall of the vagina.
- Specimen must be transferred immediately into the Xpert Swab Specimen Collection Tube with the pink cap. Insert swab into collection tube and break the shaft at the score mark.
- Tightly recap the tube. Invert or gently shake tube 3-4 times.
- Label the tube with patient information.
- Ship to laboratory at room temperature.
Cervix/Endocervical Specimen Collection Instructions:
- Partially open the large cleaning swab. Use the large cleaning swab to remove excess mucus from the cervical os and surround mucosa. Discard the large cleaning swab.
- Partially peel open the FLOQSwab in collection kit. Endocervical collection- carefully insert the swab into the endocervical canal, gently rotate the swab for 10 to 30 seconds. Cervix collection- swab the cervix and surrounding mucosa. Specimen must be transferred immediately into the Xpert Swab Specimen Collection Tube (pink top).
- Unscrew the cap of the Xpert Swab Specimen Collection Tube (pink top).
- Fully insert the swab into the Xpert Swab Specimen Collection Tube (pink top) so the tip is at the bottom after carefully removing cap so it can be used later to recap the specimen.
- Break the shaft at the score mark, taking care to avoid splashing. If the contents of the tube are spilled, use a new collection kit.
- Tightly recap the tube. Invert or gently shake tube 3-4 times.
- Label the tube with patient information.
- Ship to Laboratory at Room Temperature.
Sample Stability
Urine sample must be added to a Xpert Urine Specimen Collection Tube (pink top) Tube within 4 hours after collection. After placing specimen in the Xpert Specimen Collection Tube it is stable for up to 28 days at 2 - 30C.
Vaginal, Endocervical, or Cervical sample must be immediately placed in the Xpert Swab Specimen Collection Tube (pink top). After placing specimen in the Xpert Specimen Collection Tube it is stable for up to 60 days at 2 - 30C.
Turnaround Time
24 Hours
Test Schedule
Daily 0500-2300
Method
Cepheid GeneXpert Real-time PCR assay
Reference Ranges
Detected, Not Detected, or Invalid for Trichomonas vaginalis
Synonyms
TV, Trich, Trichomonas
CPT Code
87661
Interfering Substances
Potential Interfering Substances:
TV: With endocervical and patient-collected vaginal specimens, test interference may be observed in the presence of blood.
Specimen Rejection Criteria
- Incorrect or expired transport medium
- Any specimen that has leaked
- Improper storage conditions during transport
- Improper sample collection
Limitations
Xpert TV Test performance has not been evaluated in pregnant women, or in patients with a history of hysterectomy. Xpert TV Test performance has not been evaluated in patients less than 18 years of age or older than 78 years of age.