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UF Health University of Florida
Pathology Laboratories UF Path Labs - Department of Pathology
Results Portal

Chlamydia Trachomatis and Neisseria Gonorrhoeae (CT/NG)

Additional Information:


Epic order code: LAB1376

This assay is also included in the following panel:
Multitest Profile, Vaginal Swab, NAA [LAB3725]

CPT Code(s):

  • 87491
  • 87591

Specimen Requirements:

Specimen Requirements

  • Female endocervical and Male Urethral Swab Specimens collected in the Aptima Unisex Swab Specimen Collection kit
  • Female Vaginal Swab Specimens collected in the Aptima Vaginal Swab Specimen Collection Kit
  • Urine collected in theAptima Urine Collection Kit
  • Gynecologic samples collected in PreservCyt (ThinPrep)
  • Collection Guides
Unacceptable Conditions:

  • Frozen specimens
  • Swabs or samples collected in any other transport media
Stability (collection to initiation of testing):

  • Swab specimens collected in the Aptima Unisex Swab Specimen Collection Kit or Aptima Vaginal Swab Specimen Collection Kit: 60 days at 2°C to 30°C.
  • Urine specimen collected in the Aptima Urine Collection Kit: 30 days at 2°C to 30°C.
  • Neat urine is stable at 2 – 30 °C for up to 24 hours.
  • Thinprep (PreservCyt): 30 days at 2°C to 30°C. .

Use:

This test is used to detect sexually transmitted diseases, specifically Chlamydia trachomatis and Neisseria gonorrhoeae.

Reported:


4 days from receipt of the specimen

Reference Values:

Negative (interpretative report provided)

Interpretation Data:

Interpretation Data Result
CT positive/
GC negative		 Positive for CT rRNA
CT negative/
GC positive		 Positive for GC rRNA
CT negative/
GC negative		 Presumed negative for CT rRNA;
Presumed negative for GC rRNA
CT invalid/
GC invalid		 Both CT and NG testing are indeterminate, a new specimen should be collected.
CT positive/
GC Equiv (GC invalid)		 Positive for CT rRNA; GC testing is indeterminate, a new specimen should be collected.
CT negative/
GC Equiv (GC invalid)		 Presumed negative for CT rRNA; GC testing is indeterminate, a new specimen should be collected.
CT Equiv (CT invalid)/
GC positive		 Positive for GC rRNA; CT testing is indeterminate, a new specimen should be collected.
CT Equiv (CT invalid)/
GC negative		 Presumed negative for GC rRNA; CT testing is indeterminate, a new specimen should be collected.