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HelpTest Code CTGC Chlamydia/GC, Amplified DNA (Unacceptable on children <14yrs)
Additional Codes
Epic EAP: LAB1376
Epic Description: CHLAMYDIA / N.GONORROHEAE BY AMP DNA
Synonym
CT/GC Amplified Probe
Chlamydia DNA
Neisseria DNA
CT/NG
Collection Limitations
This test cannot be performed on patients <14 years of age.
For testing in children ≥4 to ≤14 years of age, refer to LAB10290 for ordering information.
Culture collection and transport devices are available through Lab Client Services at (504) 842-4623.
Oral, anal, or rectal specimens require the use of the Aptima Collection Unisex swab or Mulittest collection device.
For children ≥4 to ≤14, only urine specimens are acceptable. 7mLs of Urine samples must be transferred to a Urine Transport tube within 24 hours. The test order code is CGRNA (LAB10290) and is sent out to a reference lab. The Aptima collection devices are available through Lab Client Services at (504)842-4623.
CEPHEID COLLECTION SWAB IS UNACCEPTABLE FOR SENDOUT TESTS.
Specimen Type
Varies
Specimen Required
Primary Source: Vaginal or Cervical
| Collection Container | Preferred Volume | Minimum Volume | |
|---|---|---|---|
| Preferred |
Cepheid CT/NG collection device (pink=female) |
1 swab | 1 swab |
Alternate Source: Urine, First-catch (Male or Female)
| Collection Container | Preferred Volume | Minimum Volume | |
|---|---|---|---|
| Preferred | Cepheid Urine Collection Tube | 7.0 mL | 7 .0 mL |
| Alternate |
Sterile container (aliquot to Cepheid Urine tube) |
20.0 mL | 7 .0 mL |
Specimen Stability
Vaginal swabs in Cepheid Transport collection devices are stable for 60 days at room temperature. Urine specimens - transfer 7mls to Cepheid Urine collection device within 24 hours of collection. Urine samples in urine collection device are stable for 3 days at room temperature.
Instructions for Collection and Transport
Collect female specimens by using the large swab for cleaning and then the small swab for collecting specimen. Avoid excessively bloody specimens.
Collect first catch urine. Urine must be aliquoted to Cepheid Urine containers within 24 hrs of collection. Transport refrigerated on freeze packs or at room temperature. Refrigerate if holding overnight. Samples collected in urine collection devices can be held at room temperature.
Performing Lab
Microbiology Lab
Alternative testing - Sendout Lab
Assay Frequency
Monday-Friday
Routine Turnaround Time
3-5 days excluding weekends and holidays
CSR Storage Requirements
Transport specimen to Microbiology at room temperature.
CPT Code Information
87491
87591
Patient Preparation
Females -Clean vaginal area before collecting specimen.
For Urine specimens – Collect first catch; not midstream.