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Test Code CDT PCR CLOSTRIDIOIDES DIFFICILE (reflex PCR)

Aliasis

C diff, CDT

Patient Preparation

No special patient preparation required

Special Collection Instructions

Collect directly into a clean dry container. Do not place in preservative. Stool must be liquid.

Collection Method

Stool collection

Minimum Volume

1.0 mL

Container

Sterile container

Preferred Specimen

Raw liquid stool

Acceptable Specimen(s)

Raw liquid stool in sterile container

Reference or Target Ranges

Negative for Clostridioides difficile

Reportable Units

Positive / Negative

Critical Value

Positive

Reasons for Rejection

Other:                           

Formed Stool, QNS, contaminated, Improperly labeled, Improper specimen type

 

Patient is <2 years

Patient has had a Positive result in last 28 days or Negative result in the past 7 days.

Specimen Stability

Ambient

2 Days

Frozen  

4 Days

Performance Information

Days and Time Performed

Daily between 0700-1500

Expected Turn Around Time

2-hours from the time specimen is received into Microbiology Department

Performing Bench

CRMC Serology

Methodology/Method Description

Revogene real-time polymerase chain reaction (PCR)

Additional Information / Important Notes

Clostridioides difficile GDH AG/Toxin must be performed first. If results are Indeterminante, then testing is reflexed to CDT PCR for confirmation.

Methodology/Method Description

Revogene real-time polymerase chain reaction (PCR)

CPT Codes

87493