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Gram-Negative Screening Swabs
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General
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Clinical Use:
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Acquired antibiotic resistance and the infection control implications of certain species of Gram-negative bacilli has led to the introduction of laboratory-based screening techniques to identify patients colonised with these organisms. Details regarding specific organism groups and the associated antibiotic resistance are as follows:
- Carbapenem-Resistant Enterobacterales (CRE) or Carbapenemase-Producing Enterobacterales (CPE) are Gram-negative bacilli that are resistant to the Carbapenem class of antibiotics.
- Extended-Spectrum Beta-Lactamase (ESBL) producing Enterobacterales are Gram-negative bacilli that are resistant to extended spectrum Cephalosporin antibiotics.
- Gentamicin-Resistant Enterobacterales (GRE) are Gram-negative bacilli that are resistant to the antibiotic Gentamicin.
- Multi-Resistant Pseudomonas aeruginosa and Multi-Resistant Acinetobacter baumannii are species of Gram-negative bacilli that acquire resistance to multiple classes of antibiotics.
- Serratia marcescens is a species of Gram-negative bacilli that has been associated with neonatal intensive care unit outbreaks. Screening is only performed at the request of a Clinical Microbiologist.
Please note: all requests for environmental screening swabs for the above organisms must be approved by a Clinical Microbiologist. |
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Availability:
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Samples are tested routinely during the testing laboratory's hours of operation. |
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Aliases/Synonyms:
| Carbapenemase Resistant/Producing Enterobacterales Screening, Carbapenemase Resistant/Producing Organism Screening, CPE Swabs; Carbapenemase Producing Enterobacterales, CPE Swabs; Carbapenemase Producing Enterobacteriaceae, CRE/CPE Swabs, CRO/CPO Swabs, ESBL Swabs, Extended-Spectrum Beta-Lactamase Screening, Gentamicin Resistance Enterobacterales Screening, GRE Swabs, Multi-Resistant Acinetobacter baumannii Screening, Multi-Resistant Pseudomonas aeruginosa Screening, Serratia marcescens Screening, |
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Code:
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CXGNB |
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Handling Instructions (to laboratory):
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Send sample ambient. |
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Hyperlink:
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Reference Interval:
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Not Applicable
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Collection Requirements
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Container:
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Sterile Container (STERILE), |
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Sample Type:
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Most commonly Rectal Swab - Confirm with Local Infection Control Staff |
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Minimum Collection Volume:
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N/A |
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Collection Instructions:
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Processing Requirements
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Alternate Containers:
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Processing Instructions:
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Minimum Assay Volume:
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N/A |
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Stability:
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Transport Instructions (to testing laboratory):
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Send sample ambient. |
Testing Locations
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Performed at:
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Section
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Department
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Site
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Contact Phone
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| Bacteriology |
Microbiology |
Fiona Stanley Hospital |
6152 8012 |
| Bacteriology |
Microbiology |
QEII Medical Centre |
6383 4505 |
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Last Updated : 17-02-2026 13:13 |