Neisseria gonorrhoeae RNA by TMA, Throat : 1004860

Test Code
GCTHR or 1004860

Alias/See Also
Neisseria gonorrhoeae by Nucleic Acid Amplification Test (NAAT); Throat gonococcal infections

CPT Codes
87591

Instructions
Throat, Oral, Pharyngeal or Oropharyngeal swab sample can be collected using Aptima Unisex (Client Supply # 11071) or Aptima Vaginal Swab (Client Supply # B30079) Collection Kits, and submitted in the APTIMA® swab specimen transport tube. Swab specimens can also be submitted in PreservCyt® (ThinPrep, Client Supply # P70098) or SurePath™ (Client Supply # P490527) fixative.

Instructions for Throat swab specimen collection using Aptima Swabs: Use the vaginal or blue-shafted unisex swab to rub the posterior pharynx and tonsillar areas. 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; use care to avoid splashing of the contents. Recap the swab specimen transport tube tightly.

Note: Do not use the white-shafted swab provided in the vaginal swab collection kit.

Instructions for Throat swab collection in cytology media: Collect oropharyngeal specimen using a Dacron swab. It is important to use Dacron® and not a cotton swab, as cells tend to cling to cotton and do not release easily into cytology fluids. Sample the lesion with moisten swab and place it in cytology media. Tighten the cap on the container so that the torque line on the cap passes the torque line on the vial.

Transport Container
Submit Aptima Unisex (Client Supply # 11071) or Aptima Vaginal Swab (Client Supply # B30079) in the APTIMA® swab specimen transport tube.

Submit throat swab in PreservCyt® vial or SurePath™ vial or 2 mL (Min. 1 mL) aliquot of vial (Client Supply # B11700).

Transport Temperature
Ambient.

Specimen Stability
Swab: Ambient: 60 days; Refrigerated: 60 days; Frozen: 12 months

PreservCyt®: Ambient: 6 months; Refrigerated: 6 months; Frozen: Unacceptable

SurePath™: Ambient: 24 hours; Refrigerated: 4 weeks; Frozen: Unacceptable

Methodology
Nucleic Acid Amplification Test (NAAT) based on Transcription Mediated Amplification (TMA) of RNA; Gen Probe APTIMA Combo 2

Setup Schedule
Monday - Friday

Report Available
1-4 days

Reference Range
Target Not Detected

Clinical Significance
Chlamydia trachomatis and Neisseria gonorrhoeae may infect the oro-pharynx of sexually active individuals. Changing patterns of human sexual activity make extragenital C. trachomatis and N. gonorrhoeae infections more common. Because extragenital infections are asymptomatic, detection of these organism may be important for determining the risk for disease progression in infected individuals or transmission amongst partners.

NAATs in general have better overall sensitivity, specificity, and specimen stability in transport than any of the non-molecular tests.

Performing Laboratory
med fusion



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.