Biosafety Levels and Risk Groups

The four risk groups are Risk Group 1, 2, 3, and 4, with Risk Group 4 representing the highest risk.

ABSA International provides a free and searchable database for pathogenic organisms, aiding in laboratory and task-specific risk assessments.

Risk Group 3 pathogens usually cause serious disease but do not ordinarily spread from one infected individual to another.

<p>Most clinical laboratories operate at a Biological Safety Level 2 (BSL-2).</p> Signup and view all the answers

<p>Biological Safety Levels (BSL) are classifications that range from BSL-1 to BSL-4, designating levels of containment and safety measures.</p> Signup and view all the answers

<p>BSL-3 laboratories typically handle higher-risk work such as cultures of Mycobacterium tuberculosis and Risk Group 3 or 4 organisms.</p> Signup and view all the answers

<p>Knowing the risk groups is crucial for evaluating exposure risks and determining the necessary biosafety level and practices.</p> Signup and view all the answers

<p>Risk Group 2 pathogens can cause disease but are unlikely to pose a serious hazard, whereas Risk Group 1 pathogens are unlikely to cause disease at all.</p> Signup and view all the answers

<p>A Risk Group 4 pathogen usually causes serious disease and can be readily transmitted between individuals.</p> Signup and view all the answers

<p>The mode of transmission and the host range of the organism.</p> Signup and view all the answers

<p>Prophylaxis through immunization and sanitary measures like food and water hygiene.</p> Signup and view all the answers

<p>A BSL-4 laboratory has maximum containment with airlock entry and special waste disposal methods.</p> Signup and view all the answers

<p>Stool culture for enteric pathogens like Salmonella.</p> Signup and view all the answers

<p>Lab coat, nitrile gloves, safety glasses, and sometimes respiratory protection.</p> Signup and view all the answers

<p>When infectious aerosols may be generated or when higher-risk pathogens are handled.</p> Signup and view all the answers

<p>PPE is considered the last line of defense against potential workplace hazards.</p> Signup and view all the answers

<p>Solid front gowns, double gloves, disposable shoe covers, and enhanced respiratory protection.</p> Signup and view all the answers

<p>If organisms normally handled at BSL-3 are present and a BSL-3 facility is unavailable.</p> Signup and view all the answers

<p>Testing for Neisseria meningitidis and working with Mycobacterium tuberculosis cultures.</p> Signup and view all the answers

<p>It helps determine appropriate safety measures and treatment protocols for different pathogens.</p> Signup and view all the answers

<p>MERS-CoV.</p> Signup and view all the answers

<p>Existing immunity in the population can reduce transmission and impact the assessment of risk.</p> Signup and view all the answers

<p>Conducting a lab hazard analysis to identify the hazards present.</p> Signup and view all the answers

<p>Protective eyewear, lab coat, closed-toed shoes, and chemical resistant gloves.</p> Signup and view all the answers

<p>When using chemicals, glassware, or heating sources, and when dust or fumes are present.</p> Signup and view all the answers

<p>Safety glasses provide limited protection from chemical splashes, while goggles seal around the eyes for better splash protection.</p> Signup and view all the answers

<p>Face shields are used when working with large volumes of hazardous materials or during operations presenting a risk of splashes or flying particles.</p> Signup and view all the answers

<p>Prescription spectacles are generally inadequate for protection and should be worn with additional safety eyewear.</p> Signup and view all the answers

<p>Rinse the eye(s) using eyewash and remove the lens immediately, discarding the contaminated lens.</p> Signup and view all the answers

<p>Using engineering controls such as increased room ventilation, fume hoods, and glove boxes.</p> Signup and view all the answers

<p>A medical questionnaire and a respirator fit test for all users.</p> Signup and view all the answers

<p>Lab coats protect the skin and personal clothing from incidental contact and prevent the spread of contamination.</p> Signup and view all the answers

<p>Lab coats can be made from splash resistant, static free, chemical resistant, or flame resistant materials.</p> Signup and view all the answers

<p>They do not provide adequate protection from flying objects or chemicals, which can lead to injuries.</p> Signup and view all the answers

<p>Chemical splash goggles should be worn to protect against splashes from hazardous materials.</p> Signup and view all the answers

<p>Chemicals, biological materials, radioactive materials, and physical hazards such as abrasion or temperature.</p> Signup and view all the answers

<p>Determine the types of hazards that exist in your lab and the reasons for the lab coats.</p> Signup and view all the answers

<p>Consider factors such as degradation rating, breakthrough time, and permeation rate.</p> Signup and view all the answers

<p>PPE is worn to protect against exposure to hazardous substances.</p> Signup and view all the answers

<p>It should be discarded to ensure safety.</p> Signup and view all the answers

<p>Bloodborne pathogens are infectious microorganisms in human blood that can cause disease in humans.</p> Signup and view all the answers

<p>An exposure control plan detailing protection measures for employees.</p> Signup and view all the answers

<p>Disposable latex, vinyl, or nitrile examination gloves are usually appropriate.</p> Signup and view all the answers

<p>It includes product identifier, signal word, hazard statements, precautionary statements, and supplier identification.</p> Signup and view all the answers

<p>They are designed for one-time use and can become contaminated.</p> Signup and view all the answers

<p>They may be exposed to bloodborne pathogens through materials that contain blood.</p> Signup and view all the answers

<p>The SDS provides detailed information about the hazards and safe handling of chemicals.</p> Signup and view all the answers

<p>It refers to a fabric's characteristic of not burning in air.</p> Signup and view all the answers

<p>They include the use of safer medical devices and practices to prevent exposure.</p> Signup and view all the answers

<p>Inspect it regularly and discard it immediately if any defects are found.</p> Signup and view all the answers

<p>It should be stored separately from chemicals and away from heat sources.</p> Signup and view all the answers

<p>Hepatitis B virus (HBV), Hepatitis C virus (HCV), and Human immunodeficiency virus (HIV).</p> Signup and view all the answers

<p>It outlines procedures to protect employees from exposure to bloodborne pathogens.</p> Signup and view all the answers

<p>Self-sheathing needles and sharps disposal containers.</p> Signup and view all the answers

<p>Standard precautions treat all blood and body fluids as potentially infectious.</p> Signup and view all the answers

<p>Do not recap, bend, shear, or break needles.</p> Signup and view all the answers

<p>Wash the affected area immediately with soap and water.</p> Signup and view all the answers

<p>It prevents injuries and reduces the risk of infections from bloodborne pathogens.</p> Signup and view all the answers

<p>Exposure occurring from needlesticks, cuts, or abrasions that pierce the skin barrier.</p> Signup and view all the answers

<p>Sweat is not considered infectious and does not typically transmit bloodborne pathogens.</p> Signup and view all the answers

<p>A device that covers the needle after use to prevent needlestick injuries.</p> Signup and view all the answers