Neisseria gonorrhoeae, Rectal Swab, NAA

CPT: 87591
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Test Details


  • Gonococcus, Amplicor® PCR
  • Gonococcus, Aptima® TMA
  • Gonococcus, ProbeTec™ SDA


Detect Neisseria gonorrhoeae


This test was developed, and its performance characteristics determined, by LabCorp. It has not been cleared or approved by the US Food and Drug Administration (FDA).


Nucleic acid amplification (NAA)

Specimen Requirements


Rectal specimen collected with Aptima® unisex collection swab and submitted in the Aptima® Aptimaswab specimen transport tube


One swab (rectal)

Minimum Volume

One swab (rectal)


Gen-Probe® Aptima® swab specimen transport tube


Insert the blue-shafted swab, labeled “unisex collection swab for endocervical and male urethral specimens,” 2" to 4" into the rectum and rotate to sample the mucosal surfaces. 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 rectal; unlabeled specimens or those with a discrepancy between the specimen label and the test request form; Aptima swab transport tube with no swabs, two swabs or swab not supplied by GenProbe; Aptima swabs greater than 60 days from collection; any transport device other than an Aptima swab transport

Clinical Information

Special Instructions

Submit one specimen per test requested. Specify the exact specimen source/origin (eg, rectal). Indicate a specific test number on the test request form.


Kent CK, Chaw JK, Wong W, et al. Prevalence of rectal, urethral, and pharyngeal Chlamydia and gonorrhea detected in 2 clinical settings among men who have sex with men: San Francisco, Calif, 2003. Clin Infect Dis. 2005; 41(1):67-74. 15937765


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
188730 GC NAA, Rectal 57458-2 188632 Neisseria gonorrhoeae, NAA 57458-2

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