Chlamydia trachomatis DNA Amplification

Department

Microbiology - Virology

Delphic Registration Code

CLCR

Laboratory Handling

Registration

Each separate sample gets registered with a separate delphic number (even if from the same patient)

Separating

First Catch Urine preferred

Laboratory

First Catch Urine preferred

Test Adds

Sample retention is 1 month. Within this timeframe test additions for Chlamydia trachomatis, Neisseria gonorrhoeae and M.genitalium may be able to be test added.

Constituent Tests

• Neisseria gonorrhoeae PCR

Synonyms

Chlamydia trachomatis

Turnaround Time

3 days

Test Code

2876

Specimen Type

• Urine
• Throat Swab
• Rectal Swab
• Vaginal Swab
• Oropharyngeal Swab
• Eye Swab
• Genital Swab
• Cervical Swab
• Urethral Swab
• Aspirate
• Fluid
• Swab - see Additional Information

Specimen Requirements

Tube/Container Type:

Preferred

• Pottle
• Please refer to Additional Information below

Acceptable

• Pottle

Preferred Sample Volume (ml)

20.0

Minimum Sample Volume (ml)

4

No of Samples Required

1

Interferences

This is the list of lubricant gels that Do Not interfere with our assay and which can be used for speculum examinations:

Shield Gel (However, Shield Gel cannot be used for nasogastric tube insertions (NGT).
KY Jelly (is not available in single-use sachets in NZ)
Lubrigel (is not available in single-use sachets in NZ)

Lubricant gels that INTERFERE with our CT/NG/MG/TV assay and cause failures of the internal control are:
Surgi-Gel Plus: can be used for nasogastric tube insertions (NGT)
Optilube: can be used for nasogastric tube insertions (NGT)

Pre-testing Requirements

See link to Swab Guide under Additional Information section below.

1.Use Multicollect swab system for all sites. The Multicollect swab system contains a tube with transport medium and a swab for collection. Follow collection instructions. Supplies available from Canterbury Health Laboratories
DO NOT USE SURGI-GEL or OPTILUBE when taking swabs as these interfere with the assay!

2.Urine First catch urine in sterile urine pottle 10-20ml recommended volume

3. Aspirates (eg pelvic) in a sterile pottle

Additional Specimen Information

Suitable samples: Male and Female - first catch urine (minimum 5mL)
DO NOT USE SURGI-GEL or OPTILUBE when taking swabs as these interfere with the assay!
Male - urethral swab. nasopharyngeal, rectal
Female - cervix , vagina, urethra, nasopharyngeal, rectal
Eyes
Other samples eg aspirates, by request

Aliquot Instructions

Sample Type

• Urine

Minimum Volume (ml)

5

Transport to Lab

Chilled (2 - 8 degrees Celsius)
If overnight - Chilled (2 - 8 degrees Celsius)

Additional Referral/Aliquot Information

First Catch Urine preferred (min 5 ml)

Specimen Stability information: Urine Specimen and Swab Specimen Storage and Transport
After collection, transport and store transport tube at 2°C to 30°C for up to 14 days.
If longer storage is needed, samples will be stable at -10°C or colder for up to 90 days.

Reference Intervals

Reported as Negative or Positive or Inhibited

Test Method

PCR

Non-Funded Test Cost

$40.78 (Exclusive of GST)

Billing Code

2876

This is the list of lubricant gels that do not interfere with our assay and which can be used for speculum examinations:
Shield Gel (However, Shield Gel cannot be used for nasogastric tube insertions (NGT).
KY Jelly (is not available in single-use sachets in NZ)
Lubrigel (is not available in single-use sachets in NZ)

Lubricant gels that interfere with our CT/NG/MG/TV assay and cause failures of the internal control are:
Surgi-Gel Plus: can be used for nasogastric tube insertions (NGT)
Optilube: can be used for nasogastric tube insertions (NGT)

Resources

• Swab Guide

Contact Information

Enquiry Form