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Test Code LAB7392 Chlamydia trachomatis, Neisseria gonorrhoeae, PCR

Performing Lab

Arnot Ogden Medical Center

Ordering Recommendations

Detection of Chlamydia trachomatis and Neisseria gonorrhoeae.

Collect

Urine (First Catch or Dirty) (Male and Female patients)

Xpert CT/NG Swab

  • self-collected vaginal
  • endocervical
  • rectal
  • pharyngeal

Collection Device

Urine: sterile container

Swab: Xpert CT/NG Swab Collection Kit (MUST use swab provided in kit)

Specimen Volume

Minimum volume (urine) : 7 mL

Stability (from collection to initiation)

  Room Temperature Refrigerated
Urine - sterile cup (female) 24 hours 8 days
Urine - sterile cup (male) 3 days 8 days
Xpert Swab Kit 60 days 60 days

 

Storage/Transport Temperature

Room Temperature or Refrigerated

Methodology

Real-Time PCR

Start Date

9/13/2017

Last Review Date

6/19/2025

Specimen Handling

Room Temperature or Refrigerated

Reference Interval

REFERENCE RANGE: NOT DETECTED

Lab Section

Microbiology

Collection Instructions

Urine

  • Patient should not have urinated for at least 1 hour prior to collection.
  • Patients should not cleanse the labia or penis prior to collection. 
  • Collect the first 20-50mL of the inital stream into a sterile urine cup. 
  • Collecting a larger volume may reduce test sensitivity. 

XpertCT/NG Self-collected Vaginal Swab

  • Open the collection kit package and discard the wrapped large cleaning swab.
  • Open the collection swab by peeling down from the top.
  • Remove the swab, taking care not to touch the tip or lay it down.
  • Hold the swab in your hand, placing your thumb and forefinger in the middle of the shaft between across the scoreline.
  • Carefully insert the swab into your vagina about two inches.
  • Gently rotate the swab for 10-30 seconds.
  • Withdraw the swab and continue to hold it in your hand.
  • Unscrew the cap from the tube. Place the collection swab into the tube.
  • Break the shaft of the swab on the scoreline. Avoid splashing tube contents on your skin.
  • Recap the tube.

XpertCT/NG Endocervical Swab

  • Open the package.
  • Remove excess mucous from the cervix and surrounding areas using the large individually wrapped cleaning swab.
  • Discard the cleaning swab.
  • Open the package that contains the collection swab.
  • Hold the swab in your hand, placing the thumb and forefinger in the middle of the shaft.
  • Insert the collection swab into the endocervical canal and rotate swab for 10-30 seconds. 
  • Withdraw the collection swab from endocervical canal.
  • Unscrew cap from the transport tube and immediately insert the collection swab into the tube.
  • Break the swab shaft against the side of the tube at the score mark.
  • Replace the pink cap back on the reagent tube and secure tightly.

XpertCT/NG Pharyngeal Swab

  • Open the collection kit package and discard the larger swab.
  • Open the collection swab by peeling down from the top.
  • Remove the swab, taking care not to touch the top or lay it down.
  • Hold the swab in your hand, placing the thumb and forefinger in the middle of the shaft.
  • Instruct the patient to open the mouth widely. Position the tongue toward the bottom of the mouth. Swab areas of the pharynx (tonsil, posterior wall, uvula, posterior wall).
  • While holding the swab, unscrew the top from the transport tube.
  • Break the shaft of the swab on the scoreline. Avoid splashing tube contents on your skin.
  • Recap the tube.

XpertCT/NG Rectal Swab

  • Open the collection kit package and discard the larger swab.
  • Open the collection swab by peeling down from the top.
  • Remove the swab, taking care not to touch the top or lay it down.
  • Hold the swab in your hand, placing the thumb and forefinger in the middle of the shaft.
  • Carefully insert the swab approximately 1 cm beyond the anal sphincter and rotate gently.
  • While holding the swab, unscrew the top from the transport tube.
  • Break the shaft of the swab on the scoreline. Avoid splashing tube contents on your skin.
  • Recap the tube.

Reported

Same shift