Laboratory Test Guide

Neisseria gonorrhoeae (GC) Amplified Nucleic Acid Detection

General Information

Lab Name

N gon(GC) Nucleic Acid Detectn

Lab Code

GCCAD

Epic Name

Gonorrhea Nucleic Acid Detection

Description

Order GCCTAD to R/O both GC and (Chlamydia trachomatis) on same specimen.

This testing is not intended for the evaluation of suspected sexual abuse or for other medico-legal indications.

Synonyms

GC-Amplification, Gonorrhea-Amplification, NAA, Neisseria-Amplification

Components

Code	Name
GCADSD	N.gon(GC) NA Spec Description
GCAD	N.gonorrhoeae(GC) Nucleic Acid

Interpretation

Method

Nucleic Acid Amplification

Reference Range

See individual components

Guidelines

Washington DOH Notifiable Conditions

Ordering & Collection

Specimen Type

Vagina, Endocervix, Urethra, Throat, Anal, First void urine

Collection

Endocervical or urethral specimen: Collect using the APTIMA Unisex Swab kit. Collect specimen with narrow-tipped APTIMA swab (labeled APTIMA Unisex Collection Swab); place swab in APTIMA Swab transport tube. (Large swab labeled APTIMA Cleaning Swab is used only to remove excess cervical mucus before collecting specimen with small swab. Discard large swab after cleaning cervix.)

Vagina: Collect vaginal specimen using the APTIMA Vaginal Swab Specimen Collection Kit. NOTE: The test performance of vaginal swab specimens has not been evaluated in pregnant women or women less than 16 years of age.

Throat: Collect throat/pharynx specimens using the APTIMA Vaginal Swab Specimen Collection Kit.

Anal: Collect anal/rectal specimens using the APTIMA Vaginal Swab Specimen Collection Kit. Avoid collecting stool on the swab.

Urine: Collect first stream of first morning void (Dirty catch for maximal sensitivity) or first stream at least 1 hour after last void in urine cup.

Also acceptable: Wait at least 1 hour after last void, then collect first stream urine in urine cup.

Unacceptable specimens: Catheterized urine, Frozen urine, unpreserved urine received >24 hours after collection, gel-based culture swab.

Handling Instructions

Swab or Urine in APTIMA tube: Transport under ambient conditions within 30 days

Unpreserved urine: Transport under ambient conditions within 24 hours; specimens received after 24 hours will be rejected.

Quantity

requested: Swab in APTIMA tube, 2 mL urine in APTIMA urine tube, or 20 mL urine in cup
minimum: Swab in APTIMA tube, 2 mL urine in APTIMA urine tube, or 20 mL urine in cup

Processing

Alert! Unpreserved urine must be transferred to an APTIMA urine tube within 24 hours of collection.

Login:

Order CHLAD if only CT (R/O Chlamydia trachomatis) is requested.

Order GCCAD if only GC (R/O Neisseria gonorrhoeae) is requested.

Order GCCTAD when R/O both GC and CT are requested.

Performance

LIS Dept Code

Serology (SR)

Performing Location(s)

HMC	Microbiology 206-744-5858 325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420