Test Details
Methodology
Nucleic acid amplification (NAA)
Result Turnaround Time
2 - 3 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
This test is used for the detection of Chlamydia trachomatis and Neisseria gonorrhoeae in patients who are eligible for or who are receiving pre-exposure prophylaxis for HIV (PrEP).
Special Instructions
Submit one specimen per test requested. Specify the exact specimen source/origin (e.g., pharyngeal). Indicate a specific test number on the test request form.
References
Specimen Requirements
Specimen
Pharyngeal specimen collected with Aptima® Unisex collection swab and submitted in the Aptima® swab specimen transport tube
Volume
1 swab (pharyngeal)
Minimum Volume
1 swab (pharyngeal)
Container
Aptima® swab specimen transport tube
Collection Instructions
Use the blue-shafted swab, labeled "unisex collection swab for endocervical and male urethral specimens," to rub the posterior pharynx and tonsillar areas. Do not use the white-shafted swab; discard this swab. 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.
Storage Instructions
Maintain specimen at room temperature or refrigerate (2°C to 30°C).
Causes for Rejection
Inappropriate transport conditions; bacterial swabs; swabs from sites other than pharyngeal; unlabeled specimens or those with a discrepancy between the specimen label and the test request form; Aptima swab transport tube with no swab, two swabs or swab not supplied by Hologic; Aptima swabs greater than 60 days from collection; any transport device other than an Aptima swab transport
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 188710 | PrEP: Ct/GC NAA, Pharyngeal | 90357-5 | 188610 | C. trachomatis, NAA, Pharyn | 57288-3 | |
| 188710 | PrEP: Ct/GC NAA, Pharyngeal | 90357-5 | 188634 | N. gonorrhoeae, NAA, Pharyn | 57289-1 | |
| 188710 | PrEP: Ct/GC NAA, Pharyngeal | 90357-5 | 019054 | 11502-2 | ||
| Order Code | 188710 | |||||
| Order Code Name | PrEP: Ct/GC NAA, Pharyngeal | |||||
| Order Loinc | 90357-5 | |||||
| Result Code | 188610 | |||||
| Result Code Name | C. trachomatis, NAA, Pharyn | |||||
| UofM | ||||||
| Result LOINC | 57288-3 | |||||
| Order Code | 188710 | |||||
| Order Code Name | PrEP: Ct/GC NAA, Pharyngeal | |||||
| Order Loinc | 90357-5 | |||||
| Result Code | 188634 | |||||
| Result Code Name | N. gonorrhoeae, NAA, Pharyn | |||||
| UofM | ||||||
| Result LOINC | 57289-1 | |||||
| Order Code | 188710 | |||||
| Order Code Name | PrEP: Ct/GC NAA, Pharyngeal | |||||
| Order Loinc | 90357-5 | |||||
| Result Code | 019054 | |||||
| Result Code Name | ||||||
| UofM | ||||||
| Result LOINC | 11502-2 |