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MRSA (Bacteriology)

Most MRSA infections are healthcare-associated, but an increasing number of infections are community-acquired, with patients having no established risk factors for acquisition of MRSA. While infections with community-acquired MRSA (CA-MRSA) are usually mild they can be severe.

General information

Collection container (including preservatives): Collect swabs dry, or into Amies transport medium with charcoal

Specimen type: Swab from Nose, Groin and manipulated wound sites

Perineal swabs will be accepted if agreed with your local IPC Team.

culture A

Collection: Use aseptic technique

Specimen transport: Specimens should be transported and processed as soon as possible.

Minimum volume of sample: Not applicable

Special precautions: If processing is delayed, refrigeration is preferable to storage at ambient temperature. Delays of over 48hr are undesirable.

Laboratory information

Measurement units: Not applicable

Turnaround time: Negative screen at 24 hrs

Positive MRSA result with sensitivities at 48hrs

95% of results reported within 24hrs

Clinical information

Clinical decision points: Not applicable

Factors known to significantly affect the results: Collect specimens before antimicrobial therapy where possible.