Multidrug-resistant Gram-negative bacteria (MRGN) Test

Three reasons the Multidrug-resistant Gram-negative (MRGN) Throat Swab test is right for you

• This test screens for multidrug-resistant Gram-negative bacteria (MRGN) colonisation in the throat
• It helps prevent the spread of highly resistant bacteria in healthcare or community settings
• Results allow clinicians to implement infection control measures and guide treatment if necessary

What is the MRGN Throat Swab test?

The MRGN Throat Swab test identifies colonisation by multidrug-resistant Gram-negative bacteria, including carbapenemase-producing organisms (CPO), in the oropharyngeal region. These bacteria are resistant to multiple antibiotics and can cause serious infections. The swab is analysed in an accredited laboratory to detect their presence.

This test is often recommended for:

• Individuals being admitted to or discharged from hospitals or long-term care facilities
• Patients with recent antibiotic use or recurrent infections
• People exposed to environments with known outbreaks of multidrug-resistant bacteria
• Monitoring infection control in high-risk populations

What are the risks of MRGN colonisation?

Colonisation with MRGN bacteria may not cause immediate symptoms but can lead to serious infections if bacteria spread or the immune system is weakened. Risks include:

• Respiratory tract infections, including pneumonia
• Bloodstream infections or systemic illness
• Limited treatment options due to antibiotic resistance
• Potential transmission to family members, patients, or other contacts

How does the MRGN Throat Swab test work?

A trained healthcare professional collects a swab from the throat. The sample is sent to an accredited laboratory where it is cultured and analysed for the presence of multidrug-resistant Gram-negative bacteria, including carbapenemase-producing organisms.

What can I expect at my appointment?

Your appointment involves a quick throat swab performed by a trained professional. The procedure is safe, minimally invasive, and usually takes only a few minutes. You may experience mild gagging or discomfort during the swab.

The sample is analysed in the laboratory, and results are typically available within a few days. Your report will indicate whether multidrug-resistant bacteria were detected, guiding any necessary infection control measures or treatment.

Are there any risks with this test?

This is a routine screening test and is very safe. Most people experience only minor discomfort during the swab. Serious complications are extremely uncommon.

How do I schedule my appointment?

To book your MRGN Throat Swab test, click the "Book Your Appointment" button at the top of the page. Select your preferred clinic, date, and time, and complete your booking securely.

Description provided by Better2Know.