What is the difference between Risk Group 2 and Risk Group 3 pathogens? What are some engineering controls used to minimize exposure to bloodborne pathogens? Why is preventive main... What is the difference between Risk Group 2 and Risk Group 3 pathogens? What are some engineering controls used to minimize exposure to bloodborne pathogens? Why is preventive maintenance critical in laboratory equipment management? Describe the correct technique for dispensing liquid from a micropipette.
Understand the Problem
These questions are asking for information related to laboratory safety and procedures, specifically regarding pathogens, engineering controls, maintenance of equipment, and pipetting techniques. Each question seeks detailed explanations or descriptions of important practices in a laboratory setting.
Answer
RG2: moderate individual risk, low community risk. RG3: high individual, moderate community risk. Controls: needleless devices, sharps containers. Maintenance ensures equipment reliability. For micropipettes: set volume, use new tip, press plunger to first stop, draw up slowly, dispense fully.
Risk Group 2 pathogens are associated with moderate individual risk and low community risk, while Risk Group 3 pathogens pose a high individual risk and moderate community risk. Engineering controls to minimize exposure to bloodborne pathogens include needleless devices and sharps disposal containers. Preventive maintenance in labs ensures equipment reliability and safety. Proper micropipette dispensing involves setting the correct volume, using a new tip, pressing the plunger to the first stop before drawing up liquid, and releasing it slowly to the second stop to dispense all liquid.
Answer for screen readers
Risk Group 2 pathogens are associated with moderate individual risk and low community risk, while Risk Group 3 pathogens pose a high individual risk and moderate community risk. Engineering controls to minimize exposure to bloodborne pathogens include needleless devices and sharps disposal containers. Preventive maintenance in labs ensures equipment reliability and safety. Proper micropipette dispensing involves setting the correct volume, using a new tip, pressing the plunger to the first stop before drawing up liquid, and releasing it slowly to the second stop to dispense all liquid.
More Information
Proper risk assessment is critical in laboratories to minimize hazards associated with pathogens. Using engineering controls and maintaining lab equipment effectively prevents accidents and ensures the safety of lab personnel.
Tips
A common mistake is not using the correct techniques for handling biohazards, which can lead to exposure. Always adhere to proper biosafety procedures and wear appropriate PPE.
Sources
- Risk Groups - Biosafety Levels - PHE.gov - phe.gov
- Risk Assessment and Biosafety Levels - Division of Research - research.charlotte.edu
- Bloodborne Pathogens and Needlestick Prevention - osha.gov
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