Chlamydia trachomatis and Neisseria gonorrhoeae, NA Amplification, Ocular specimens
Test Mnemonic
CTNGAO
CPT Codes
- 87491 - QTY (1)
- 87591 - QTY (1)
Aliases
- Chlamydia trachomatis by NA Amplification (GEN-PROBE)
- Chlamydia trachomatis by Nucleic Acid Amplification
- Neisseria gonorrhoeae by NA Amplification (GEN-PROBE)
- Neisseria gonorrhoeae by Nucleic Acid Amplification
Performing Laboratory
Mayo Clinic Dpt of Lab Med & Pathology
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| One | Swab(s) | Aptima Multitest Collection Kit | Refrigerated | Collect one Aptima unisex swab collection kit or Aptima multitest swab collection kit from ocular (corneal/conjunctiva) only sites. Indicate specimen source. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| One | Swab(s) | APTIMA Collection Unisex swab | Refrigerated | Collect one Aptima unisex swab collection kit or Aptima multitest swab collection kit from ocular (corneal/conjunctiva) only sites. Indicate specimen source. |
Stability
| Environmental Condition | Description |
|---|---|
| Refrigerated | 60 days |
| Ambient | 60 days |
| Frozen | Unacceptable |
Days Performed
Sun - Sat
Turnaround Time
2 - 5 days
Methodology
| Name | Description |
|---|---|
| Transcription-Mediated Amplification |
Reference Range
Special Info
This assay does not detect Chlamydia pneumoniae. This test is used for specimens that are not FDA approved for this assay. Acceptable non-FDA-approved specimen types are ocular swabs. Specimens must be collected using an APTIMA Unisex or Multitest swab collection kit. Specimen source is required. This test is New York State approved.
Clinical Info
This report is intended for use in clinical monitoring or management of patients; it is not intended for use in medico-legal applications. In general, this assay should not be used to assess therapeutic success or failure, since nucleic acids from these organisms may persist for 3 weeks or more following antimicrobial therapy. The presence of blood is not expected to interfere with this assay.