Oxacillin Resistance Screening Agar Base (Dehydrated)

Screen for methicillin resistant Staphylococcus aureus (MRSA) directly from routine swab samples with Thermo Scientific™ Oxoid™ Oxacillin Resistance Screening Agar Base (Dehydrated) when used with ORSAB Selective Supplement (SR0195).

Oxacillin Resistance Screening Agar Base is based on traditional Mannitol Salt Agar CM0085 with a reduction in salt concentration from 75g/L (7.5%) to 55g/L (5.5%). This lower level of salt is still enough to inhibit most bacteria other than staphylococci while optimizing the growth of low numbers of MRSA.

Oxacillin Resistance Screening Agar is intended as a medium for the screening for methicillin resistant Staphylococcus aureus (MRSA) directly from routine swab samples. The screening of patients and staff for the early detection of MRSA colonisation is essential if epidemics are to be prevented.

• Selective: Oxacillin, polymyxin B and high salt concentration makes the medium selective for methicillin resistant Staphylococcus aureus (MRSA).
• Easy-to-read: intense blue MRSA colonies are easy to read on a colorless background enabling the organism to be easily identified in mixed culture.

Oxacillin Resistance Screening Agar Base is a nutritious and selective medium containing peptone for growth, a high salt concentration and lithium chloride to suppress non-staphylococcal growth with mannitol and aniline blue for the detection of mannitol fermentation.

The antibiotics contained in ORSAB Selective Supplement SR0195 are oxacillin at 2mg/L to inhibit methicillin sensitive Staphylococcus aureus (MSSA) and polymyxin B for the suppression of other bacteria able to grow at such a high salt concentration, e.g. Proteus spp.

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Remel™ and Oxoid™ products are now part of the Thermo Scientific brand