Specimen Type:
Urine or Cervical/Vaginal swab
Tube Type:
Urine Specimen Container or swab collected in Xpert vaginal/endocervical specimen collection kit.
Collection Volume:
20.0-50.0 mL urine (fist-void, NOT midstream or clean-catch). Or, one swab GeneXpert tube.
Cause for Rejection:
Urine: <7.0 mL of urine, maximum specimen age exceeded, transport tube expired. Note >60 mL decreases sensitivity of test.
Swab: not in specific GeneXpert tube, swab removed from tube, 2 swabs in one tube thereby soaking up liquid and making test QNS to run; Grossly blood specimen.
Methodology:
DNA PCR technique specific for Chlamydia trachomatis and Neisseria gonorrhoeae
Special Instructions:
Test is FDA-approved for genital and urine specimens only. Amplified DNA probe methodology only used at CHMCA for high prevalence populations. This method is not acceptable for forensic cases (e.g. rape or child abuse). Grossly blood specimens may affect result. Obtain cervical/vaginal collection kits from CCL or Viro. Urine must be first-void, not midstream; >60.0 mL will decrease sensitivity of the test.
