Sign in →

Test Code CGPCR C. Trachomitis & GC PCR, Urine

Infectious

Performing Laboratory

YRMC, Microbiology

Day(s) Test Set Up

Monday through Friday 0600 to 1800

Saturday and Sunday  0600 to 1200

 

Testing will be performed within 24 hours of specimen receipt in laboratory.

Specimen Requirements

Urine ONLY

 

Unpreserved Urine: must be received in the laboratory within 24 hours of collection.

 

Preserved Urine: Submit in Xpert CT/NG Assay Urine Specimen Collection® preservative ONLY.

 

All other specimen collection/preservation kits will not be accepted for testing. This includes but is not limited to: Genprobe®, Genprobe Aptima® and BD Probtec® specimens.

Specimen Transport Temperature

Unpreserved Urine –  24 hours at Ambient Temperature

 

Preserved Urine - Xpert CT/NG Assay Urine Specimen Collection® preservative –  3 days Ambient Temperature. 

Reference Values

CT Not Detected

NG Not Detected

Test Classification and CPT Coding

87490

87590

 

This test has been cleared or approved by the U.S. Food and Drug Administration and is performed according to manufacturer’s instructions. Performance characteristics for this test have been verified by Yuma Regional Medical Center Laboratory in compliance with CLIA recommendations.

Collection Instructions

Unpreserved Urine – Sterile Urine container

     1.  The patient should not have urinated for at least 1 hour prior to specimen collection. Female patients should not cleanse the labial area prior to collecting the specimen.  Male patients should not cleanse the tip of penis prior to collecting specimen.

     2.  Direct patients to provide first-catch urine (approximately 20 to 50 mL of the initial urine stream) into a urine collection cup free of any preservatives. Collection of larger volumes of urine may result in specimen dilution that may reduce test sensitivity.

     3.  Unpreserved specimens must be received at YRMC laboratory within 24 hours of specimen collection.

 

Preserved Urine - Xpert CT/NG Assay Urine Specimen Collection Kit ® 

     1. The patient should not have urinated for at least 1 hour prior to specimen collection. Female patients should not cleanse the labial area prior to collecting the specimen.  Male patients should not cleanse the tip of penis prior to collecting specimen.

     2.  Direct patients to provide first-catch urine (approximately 20 to 50 mL of the initial urine stream) into a urine collection cup free of any preservatives. Collection of larger volumes of urine may result in specimen dilution that may reduce test sensitivity.

     3.  Ensure that the urine is well mixed in the urine cup before transferring a sample to the Xpert CT/NG UrineTransport Reagent tube.

     4.  Open the packaging of a disposable transfer pipette provided in the kit.

     5.  Remove the cap from the transport reagent tube and from the urine collection cup.

     6.  Insert the transfer pipette into the urine cup so that the tip is near the bottom of the cup.  Transfer approximately 7mL of urine into the transport tube using the disposable transfer pipette.  The correct volume of urine has been added when the level reaches the black dashed line on the level on the transport tube.

     7.  Replace the cap on the transport reagent tube and tighten.

     8.  Invert the collection tube 3-4 times to ensure that the specimen and reagent are well mixed.

     9.  Recap the urine cup securely.

Label the transport tube with patient specimen label.  Do not place the label over the fill line on the transport tube.

Methodology

Real-time PCR test for  genomic DNA from Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG)

Loinc Code

44806-8