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Neisseria gonorrhoeae (GC) Amplified Assay (8000100613)
Test Mnemonic:
Specimen Requirements:

Female - endocervical or vaginal collection. Male - urethral sample. Both - urine first catch (first void), throat, rectal samples.

Collection:

Follow the directions in the Aptima collection kit.

Collect first morning urine sample in sterile cup or in the transport tube in collection kit. Patient should not have urinated for at least one hour prior to urine collection.

Liquid Pap Collection Devices may also be submitted for this test.

Container:

Urine samples - sterile cup or tube; Aptima collection tubes; Liquid Pap containers (ThinPrep)

Minimum Volume:

Urine- 20 ml

Storage/Transport:

Urine samples and Liquid Pap containers - refrigerator, Aptima collection tubes - room temperature. Do not allow contact with other patients' samples in order to avoid any cross contamination.

Specimen Preparation:

Urine samples - sterile cup or tube with at least 20 ml of urine first catch (first void) and no preservatives.

Stability:

Urine samples - 7 days if refrigerated and 30 hours if un-refrigerated, Liquid Pap containers - 30 days if refrigerated, Aptima samples - 30 days room temperature or refrigerated

Causes for Rejection:

Failure to use Aptima collection kit, samples from non-approved sources.   Urine in tube with preservatives, specimen container unlabeled or labeled incorrectly, no date and time of collection on the requisition form, insufficient quantity of urine for test requirements. 

Reference Range:

Negative

Turnaround Time:

Test is performed daily, Monday through Friday

Methodology:

Nucleic acid amplification by transcription-mediated amplification (TMA), target capture, and Dual Kinetic Assay (DKA) technologies

Performed:

Clinical Microbiology

Synonyms:

GC Probe; GC Amplified Assay; GC Test

Clinical Indication:

Suspected infection with N. gonorrhoeae in urine first catch (first void), throat, rectal, endocervical, urethral, and vaginal specimens.

Patient Preparation :

Female - endocervical or vaginal collection; male - urethral sample; Both -  urine first catch (first void), throat, rectal  samples

CPT 4 Code:

87591

Note:

This test is not recommended for medico-legal purposes. Collect C. trachomatis and GC cultures in cases of suspected sexual abuse.

Collection kits specific for the Aptima system must be used unless Liquid Pap sample or urine are collected. No other transport system is acceptable. One transport may be submitted for both Chlamydia trachomatis and Neisseria gonorrhoeae testing. Aptima transport for male and female collection kits are available through Materials Management.

 

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
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