Test Details



Ordering Code


CPT-4 Code(s)


Specimen Information


Swab or urine

Specimen Preparation

Specimen source required for testing. Endocervical, vaginal or male urethral swab specimens in APTIMA Combo II transport medium. First catch urine in APTIMA Combo II Urine Transport Tube. Liquid level must fall between the two black indicator lines. Minimum 2.0 mL.
Dedicated specimens are required. If Chlamydia and Neisseria are both ordered one sample may be sent. Specimens used in other assay will not be tested.

Minimum Volume

Determined by specimen type

Transport Temperature

Varies, see stability

Rejection Criteria

Specimens submitted with the white cleaning swab or with two swabs. Transport tubes without swabs. Swabs in gel, wooden swabs, dry swabs other than BD Dry Swab system. Swabs in bacterial transport medium (e.g., Culturettes) will not be tested. Urine specimens where the liquid level in the urine transport tube does not fall between the two black indicator lines. Urine specimens in sterile containers that have exceeded the 24 hour stability. Specimens collected in liquid cytology containers or media will not be tested.


Swab in APTIMA Combo II transport medium, Urine in APTIMA Combo II urine transport tube
Room temperature: 30 days
Refrigerated: 30 days
Frozen (-20°C): 90 days


Transcription Mediated Amplification nucleic acid (TMA). Positive specimens are retested using a different TMA assay (different target) before reporting. The analytical sensitivity of the Chlamydia trachomatis assay is 7 inclusion-forming units per swab or 5 inclusion-forming units per milliliter of urine.

Reference Range

Not detected

Performing Laboratory

Warde Medical Laboratory