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Test Code (รหัสการทดสอบ):
090-70-1021

Order Name (ชื่อการทดสอบ):
Chlamydia trachomatis by NAAT (Random Urine)

 
Specimen / Container (สิ่งส่งตรวจ/ภาชนะ):
Random Urine/Sterile Container
 
Turnaround Time (ระยะเวลารอผล):
Received specimen to reported within 3 days.
 
Useful For (ประโยชน์การทดสอบ):
Use for the qualitative detection of Chlamydia trachomatis in patient specimens. 
 
Methodology (วิธีการทดสอบ):
Real Time Polymerase chain reaction (Real-Time PCR)
 
AliasesName (ชื่อเรียกอื่นๆ) :
Chlamydia trachomatis (CT),  PCR
C.trachomatis by Nucleic Acid Amplification
CT Nucleic Acid Amplification test
 
 
 
Test Code (รหัสการทดสอบ):
090-70-1021

Order Name (ชื่อการทดสอบ):
Chlamydia trachomatis by NAAT (Random Urine)

 
Patient Preparation (การเตรียมตัวผู้ป่วย):
Prior to sampling, the patient should not have urinated for at least one hour. 
 
Collection Specimen Or Container (สิ่งส่งตรวจ/ภาชนะ):
Random Urine/Sterile Container
 
Specimen Testing Type (สิ่งส่งตรวจที่ใช้ในการทดสอบ):
Initial Urine Stream 10-50 mL (minimum volume 5 mL)
 
Sub Mission Container (ภาชนะส่งตรวจ):
Sterile Container
 
Rejection Criteria (เกณฑ์ปฏิเสธสิ่งส่งตรวจ):
Hemolysis  Mild OK; Gross reject
  1. Urine is added any preservative solution.
  2. Urine is stored at  2oC to 30oC  longer than 24 hours.
  3. Specimens that appear bloody or have a dark brown color
 
Specimen Stabillity (ความคงตัวของสิ่งส่งตรวจ):
Specimen Type Temperature Time
Random Urine At temperature, 2oC to 30oC 24 hours
 
 
 
Test Code (รหัสการทดสอบ):
090-70-1021

Order Name (ชื่อการทดสอบ):
Chlamydia trachomatis by NAAT (Random Urine)

 
Method detail (วิธีการทดสอบ):
Real Time Polymerase chain reaction (Real-Time PCR)
 
Schedule (ตารางการทดสอบ):
Monday, Wednesday and Friday, at 10:00 a.m.
 
Turnaround Time (ระยะเวลารอผล):
Received specimen to reported within 3 days.
 
Performing Location (หน่วยงานที่ทำการทดสอบ):
Molecular biology & Genetics, Laboratory Department Tel.14168
 
Specimen Retention Time (ระยะเวลาเก็บสิ่งส่งตรวจ):
7 days
 
 
 
Test Code (รหัสการทดสอบ):
090-70-1021

Order Name (ชื่อการทดสอบ):
Chlamydia trachomatis by NAAT (Random Urine)

 
 
Clinical Information (ข้อมูลทางคลินิก):
Chlamydia trachomatis (CT) is the causative infectious agent for a variety of diseases in men: urethritis, proctitis, conjunctivitis, epididymitis and Reiter’s Syndrome. Among women, the consequences of chlamydial infections are severe if left untreated. Since approximately half of these infections are asymptomatic, many cases go undetected and untreated, leading to additional problems, particularly with pregnant women. In addition, re-infections are frequent if the sex partners are not treated. CT infection can cause urethritis, cervicitis, proctitis, conjunctivitis, endometritis, salpingitis (with subsequent infertility or ectopic pregnancy) and perihepatitis. Infants from infected mothers can develop conjunctivitis, pharyngitis and pneumonia. 
 
Reference Value (ค่าอ้างอิง):
Negative
 
Interpretation (การแปลผล):
  1. A positive result indicates that specimen is positive for the presence of Chlamydia trachomatis DNA and supports a diagnosis of chlamydial infection.
  2. A negative result does not preclude the presence of Chlamydia trachomatis infection because the detection of C. trachomatis is dependent on the number of organisms present in the specimen and may be affected by specimen collection methods, patient factors (i.e., age, history of STD, presence of symptoms), stage of infection and/or infecting C. trachomatis  strains.
  3. Reliable results are dependent on adequate specimen collection, transport, storage and processing procedures.
  4. Though rare, mutations within the highly conserved regions of the cryptic plasmid or genomic DNA of C. trachomatis covered by the test’s primers and/or probes may result in failure to detect the presence of the bacterium.
 
Clinical Reference (เอกสารอ้างอิง):
Manufacturer’s package insert, cobas® 4800 CT/NG Test, March 2019, Roche Molecular Systems, NJ 08876 Branchburg, USA.