Laboratory Test Information Guide

Details for Carbapenemase Producing Enterobacteriaceae Screen

Test Name: Carbapenemase Producing Enterobacteriaceae Screen
Alternate Name(s): CPE Screen
Laboratory: Microbiology
Specimen Type: Rectal Swab
Collection Information: If the patient is neutropenic and/or has active rectal mucositis DO NOT collect rectal swab.

Rectal Swabs:

Rectal swabs should be inserted into the rectum so that they become soiled with fecal material.

1. Carefully insert the swab approximately 2 cm beyond the anal sphincter
2. Carefully rotate the swab to sample the anal crypts. Fecal matter should be visible on the swab
3. Place the swab in the appropriately labeled collection container

Dry swabs are unacceptable.


Instruct patient to pass stool into a clean, dry pan or toilet mounted container. Transfer 5 mL of liquid stool or 1 g of fecal material into a dry sterile container.

This test cannot be processed as a STAT request. Samples are handled in a priority sequence and results are reported as they become available.
Test Schedule: Daily Specimens received after 2 pm will not be processed until the next day
Turnaround time from when specimen
is received in testing laboratory:
1-2 days
Reference Range:  
Effective Date: 2019-02-20
Revised Date: 2019-02-21
Critical Value:  
Interpretive Comments:  
Special Processing: Ordered as part of an admission screen if the patient has received health care out of country within the last 12 months and is to be admitted to a high risk area (MSICU (UH), CCTC (VH), PCCU (VH), transplant (UH), BMT (VH) and oncology (VH) ).

Prevalence screening may be requested under the discretion of Infection Control.
Method of Analysis: Culture
Critical Information Required:  
Storage & Shipment: The specimen must be stored at room temperature.
The specimen must be received within 24 hours of collection in the Microbiology Laboratory.
System Codes: 
Referred To:  

Questions? Comments? Contact Laura Gopaul