Imperial Collage Healthcare

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Chlamydia trachomatis (CT) NAATCombined CT/ Neisseria gonorrhoeae (GC) NAAT

Lab Code : CHLAG or GCCHL

Reference Range


Sample Required
• First-catch urine• Genital swabs (urethral, cervical, vulvo-vaginal and rectal) • Extra-genital swabs (throat or conjunctival)

Sample Container
Urine in sterile universal container

Sample Collection
BD ProbTec™ sample collection kit (male/female)

Transport to the laboratory on the day of collection or store overnight at room temperature

Turnaround Time
5 days

Suspected LGV cases are referred to the Sexually Transmitted Bacteria Reference Laboratory, Public Health England, for confirmation.

The laboratory is not UKAS accredited for the secondary test performed on positive Neisseria gonorrhoeae (GC) NAAT screening tests for EYE swabs only.
See here for further information


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