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Test Name:
Neisseria gonorrhoeae, by Nucleic Acid Amplification, Swab
- SBMF No:
21052 - Performance Lab Name:
Microbiology - Test Mnemonic:
GC - ABN:
Not required - CPT Code:
87591 - LOINC Code:
43305-2 - Also Known As:
APTIMA® GC Assay
GC NAAT - Also See:
21050 – Chlamydia trachomatis and Neisseria gonorrhoeae, by Nucleic Acid Amplification, Swab - Spec Type:
Female: Endocervical sample
Male: Urethral sample - Spec Container:
APTIMA® Unisex Swab Specimen Collection Kit
(Order SBMF stock #: 7299) - Alt Spec Type:
Female: Endocervical sample
Male: Urethral sample - Alt Spec Container:
BD ProbeTec swab (male or female) – acceptable, but not preferred - Pref Vol:
One (1) blue–shaft, small–tip swab tip placed in white-label "APTIMA® Swab Specimen Transport Tube" - Fasting:
No - Patient Prep:
Female Endocervical Swab Specimens:
– Remove excess mucus from endocervix using large–tip cleaning swab from "Unisex Swab Specimen Collection Kit"
Male Urethral Swab Specimens:
– Instruct patient not to urinate for at least 1 hour before time of specimen collection - Spec Collect:
Female Endocervical Swab Specimens:
– Remove excess mucus from endocervix using large–tip "cleaning swab" from "Unisex Swab Specimen Collection Kit"
– Discard "cleaning swab" after use – do not use for specimen collection
– Remove blue–shaft, small–tip "collection swab" from collection kit and insert swab into endocervical canal
– Gently rotate swab for 10 to 30 seconds in endocervical canal to ensure adequate sampling
– Do not touch vaginal wall with swab during collection or removal process
– Carefully remove swab and place into white–label "Swab Specimen Transport Tube" from collection kit
– Break swab shaft at scoreline – do not splash tube contents
– Tightly recap transport tube taking care not to disrupt foil portion of cap
– Label tube with patient identification and collection date
Male Urethral Swab Specimens:
– Instruct patient not to urinate for at least 1 hour before time of specimen collection
– Remove blue–shaft, small–tip "collection swab" contained in "Unisex Swab Specimen Collection Kit"
– Insert small–tip swab 2 to 4 cm into urethra
– Gently rotate swab for 2 to 3 seconds to ensure adequate sampling
– Carefully remove swab and place into white–label "Swab Specimen Transport Tube" from collection kit
– Break swab shaft at scoreline – do not splash tube contents
– Tightly recap transport tube taking care not to disrupt foil portion of cap
– Label tube with patient identification and collection date - Spec Store Transport:
Refrigerated or room temperature - Spec Stability:
Endocervical or urethral (male) swab specimens in appropriate transport medium:
– 2 months room temperature (20-30°C)
– 2 months refrigerated (2-8°C)
– 3 months frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
White–shaft, large–tip "cleaning" swab placed in "Swab Specimen Transport Tube" either alone or with blue–shaft, small-tip swab, will be rejected
Appropriate blue–shaft, small-tip swab used to collect sample, but not placed in "Swab Specimen Transport Tube", will be rejected - Methodology:
Target Capture - Use:
Detect Neisseria gonorrohoeae - Clinical Significance:
Sexually Transmitted Disease (STD)
Reportable Disease - Reference Range:
Negative for Neisseria gonorrhoeae - Critical High Value:
Positive for Neisseria gonorrhoeae - Additional Test Info:
Positives are confirmed by repeat testing, performed next day using PCR.
Note: Culture is recommended for Neisseria gonorrhoeae detection in cases of suspected sexual abuse or suspected failure of therapy. - Day Run:
Mon, Wed, Fri - Time Run:
7:00 am - Time Reported:
5:00 pm - Test Type:
INFECTIOUS ORGANISM
