BD 231319 - Sensi-Disc Oxacillin 1g Antibiotic Susceptibility Testing Disc, 10 EA/PK
The BD 231319 Sensi-Disc Oxacillin 1g is a precision-manufactured antimicrobial susceptibility testing (AST) disc used in the standardized Kirby-Bauer disk diffusion method. Developed by BD (Becton Dickinson), this disc is specifically designed to determine bacterial resistance to oxacillin, a beta-lactam antibiotic used to identify methicillin-resistantStaphylococcus aureus(MRSA) and other resistant staphylococcal species. Each disc contains exactly 1g of oxacillin, providing accurate, reproducible inhibition zones when used on Mueller-Hinton Agar supplemented with 2% NaCl. This test is essential in clinical microbiology for detecting beta-lactam resistance and guiding appropriate antibiotic therapy.
Key Benefits
The BD Sensi-Disc Oxacillin 1g offers exceptional reliability, precision, and consistency for clinical antibiotic susceptibility testing. Its controlled antibiotic concentration ensures uniform diffusion, producing clear and interpretable inhibition zones. BDs advanced manufacturing and quality control processes guarantee disc potency, stability, and uniformity across batches. The disc plays a crucial role in the detection of MRSA and other oxacillin-resistant strains, supporting infection control and antibiotic stewardship programs. The moisture-resistant packaging extends shelf life and prevents degradation, ensuring consistent test accuracy even under varied laboratory conditions.
Compatibility and Applications
This Sensi-Disc is designed for use with the Kirby-Bauer disk diffusion method following CLSI (Clinical and Laboratory Standards Institute) guidelines. It is compatible with Mueller-Hinton Agar plates supplemented with 2% NaCl and inoculated with standardized bacterial suspensions. The BD 231319 disc is primarily used in hospitals, clinical laboratories, and public health facilities for determining the oxacillin susceptibility ofStaphylococcus aureusand coagulase-negativeStaphylococcusspecies. It is a key diagnostic tool in identifying methicillin-resistant isolates and monitoring antimicrobial resistance trends in healthcare environments.
Usage Guidelines
Prepare a 0.5 McFarland standard suspension of the test organism and inoculate a Mueller-Hinton Agar plate evenly using a sterile swab. Place one BD 231319 Oxacillin 1g Sensi-Disc onto the agar surface using sterile forceps or a BD Sensi-Disc dispenser. Incubate the plate at 3335C for 24 hours in ambient air or a CO2 incubator as recommended. After incubation, measure the diameter of the inhibition zone in millimeters and interpret results according to current CLSI or EUCAST breakpoints. Use quality control strains such asStaphylococcus aureusATCC 25923 (susceptible) andStaphylococcus aureusATCC 43300 (resistant) to ensure test validity.
Certifications, Safety Standards, and Regulatory Approvals
The BD 231319 Sensi-Disc Oxacillin 1g is produced under ISO 13485certified quality management systems and meets FDA and CE regulatory requirements for in vitro diagnostic (IVD) use. It is manufactured in compliance with Good Manufacturing Practices (GMP) and tested according to CLSI standards for antibiotic potency, diffusion characteristics, and sterility. Each lot is verified against reference control organisms to ensure accurate and reproducible antimicrobial susceptibility results.
Comparison with Competitor Products
Compared to other oxacillin discs on the market, BD Sensi-Discs are renowned for their superior precision, consistency, and durability. Competitor discs may exhibit variable antibiotic loading or inconsistent diffusion rates, resulting in unreliable zone readings. BDs proprietary disc preparation process ensures stable antibiotic distribution and uniform absorption. The moisture-resistant cartridge packaging preserves disc potency and extends storage life. Laboratories worldwide prefer BD Sensi-Discs for their trusted reliability, compliance with international testing standards, and long-standing reputation for excellence in AST products.
Typical User Profile and Application Scenarios
This product is used by clinical microbiologists, infectious disease specialists, and laboratory technologists engaged in antimicrobial resistance testing. It is particularly useful in hospital microbiology laboratories, diagnostic centers, and infection control departments monitoring MRSA prevalence. The BD 231319 disc is also employed in pharmaceutical and public health laboratories conducting antibiotic resistance surveillance and quality assurance programs. Its ease of use and reproducibility make it a standard choice for identifying oxacillin resistance in routine diagnostic workflows.
Best Practices for Use and Maintenance
Store the discs at 28C in their original, moisture-protected packaging. Before opening, allow the discs to reach room temperature (2025C) to prevent condensation. Handle using sterile forceps or dispensers and avoid excessive exposure to air or humidity. Use freshly prepared and quality-controlled Mueller-Hinton Agar for optimal diffusion results. Regularly verify disc potency with recommended control strains. Discard expired or damaged discs, and ensure all test conditions (pH, agar depth, incubation temperature) comply with CLSI standards to maintain result accuracy.
Regulatory and Safety Information
This product is intended for professional laboratory use only. Handle all bacterial isolates as potentially infectious materials under Biosafety Level 2 (BSL-2) containment. Use appropriate personal protective equipment (PPE), including gloves, lab coats, and eye protection. Dispose of used discs, plates, and materials by autoclaving or in accordance with institutional biohazard waste disposal procedures. Refer to the Safety Data Sheet (SDS) for detailed handling, storage, and disposal information. BD ensures that all Sensi-Disc products meet international safety, quality, and environmental standards for clinical diagnostic applications.
How to Order
To order the BD 231319 Sensi-Disc Oxacillin 1g, add the product to your cart and complete the secure checkout process on the CIA Medical website. For institutional, bulk, or standing laboratory supply orders, contact CIA Medical customer service at (312) 275-5850 or use the online inquiry form. CIA Medical offers competitive pricing, rapid delivery, and dedicated support for all BD Sensi-Disc antimicrobial susceptibility testing products and microbiology laboratory supplies.
