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microbial ​​DISEASES LABORATORY BRANCH​

Test Name

​​Carbapenemase-Producing Organism (CPO) Colonization Testing​

​

​Test ā€‹ā€‹ā€‹ā€‹ā€‹M​​​e​​th​o​​​​d​​​olog​y​​
​​​Carbapenemase genotypic detection: PCR ā€‹ā€‹based assay (Xpert Carba-R)

Reflex Te​sting
Criteria
​
​Not Applicable. ​​

​Pre-A​pproval
Required​
​
​​​Yes, must be approved by CDPH Healthcare Associated Infections (HAI) Program and California Antimicrobial Resistance Laboratory (CARL) Program prior to submission. Please coordinate with HAIProgram@cdph.ca.gov and CARLProgram@cdph.ca.gov ​ to ensure proper submission.

​Supp​lemental Information and Requi​​red Form(s)​
​​​Please use MDL AST ā€œAntimicrobial susceptibility testingā€ form for submission and select ā€œCPO Colonization Screeningā€ on Page 2. Submittal form and instructions for using the MDL Lab Web Portal (LWP can be found are on our website at: Barcode Submission form and submission instructions.
Detailed instructions for filling out and submitting the AST form can be found here: AST instructions​.
For more information on the CPO Swab test, please reference our test announcement ā€‹ā€‹Carbapenemase-Producing Organism (CPO) Colonization Testing.​


​Required Specimen Type(s)
​​​Rectal swabs collected using Cepheid dual-swab collection device.

​
​Minimum Volume Required

​Not Applicable​

​Specimen Stability​
​Swabs in the transport tubes can be stored up to 5 days from collection at room temperature (15-28⁰C).​​​

​Rejection Criteria​​
​
  • ​​Samples collected with unacceptable swab collection devices
  • ​​Samples that have not been preapproved for testing 
  • Samples with insufficient or conflicting labelling
  • Leaking samples
  • Specimens shipped or stored at other than room temperature
  • Specimens received past 5 days from collection date
  • ​Specimen/sample types not meeting acceptance criteria (see CPO colonization testing guide)​

Storage/Transport Conditions ​​​​

​​Swabs in the transport tubes can be stored up to 5 days from collection at room temperature (15-28⁰C).

Transport Medium,​​
if applicable
​

​Liquid Stuart transport media included in Cepheid dual swab collection device.​​​

​Specimen Labeling

  • ​​Two identifiers, including patient full name, and at least one other identifier (specimen accession number preferred, date of birth, medical record number).
  • Collection date and time 

​Shipping Instructions and Specimen Handling Requirements​

​​Ship at ambient temperature using appropriate DOT/IATA approved shipping procedures.

Shipping materials may be provided by CDPH’s California Antimicrobial Resistance Laboratory (CARL) Program prior to submission. Please coordinate with CARLProgram@cdph.ca.gov to ensure proper submission.

Ship to:

California Depart​ment of Public Health​
Microbial Diseases Laboratory ​
ATTN:  Bacterial Diseases Section
850 Marina Bay Parkway, Specimen Receiving Room B106
Richmond, CA  94804​​

​Specimen Collection Instructions, if applicable

​​Collection instructions available from Cepheid (Rectal/Perirectal Swab PDF​

​Turnaround Time

​7 business days
​Interferences & Limitations​

​​This test is intended for infection control purposes. The PCR assay cannot differentiate between viable and non-viable cells present in the sample.

​Reference Range
​
​Not Applicable
​Additional
Information
​
​None
​MDL Point of Contact​
​For questions regarding submissions, please email CARLProgram@cdph.ca.gov​ or MDL.Submissions@cdph.ca.gov or call the MDL Bacterial Diseases Section at 510-412-3903 Monday – Friday 8 AM to 5 PM PT​



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