Laboratory Safety Equipment Quiz
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Questions and Answers

What should be worn to protect the eyes when handling hazardous materials?

  • Sunglasses
  • Goggles (correct)
  • Safety glasses
  • Contact lenses

    • It is acceptable to wash and reuse gloves in a laboratory setting.

    False

    What type of respirators are recommended to reduce respiratory exposure to pathogens?

    Fit-tested particulate respirators (e.g., EU FFP2, US NIOSH-certified N95)

    A disposable laboratory coat is compulsory in physical containment level ______ laboratories.

    <p>3</p> Signup and view all the answers

    Match the types of protective equipment with their purposes:

    <p>Goggles = Protect eyes from splashes Gloves = Prevent contamination and protect hands Masks = Block splashes and reduce respiratory exposure Laboratory coats = Protect body from hazardous substances</p> Signup and view all the answers

    What is a recommended action when leaving the working area?

    <p>Remove gloves</p> Signup and view all the answers

    Contact lenses provide adequate protection when handling hazardous materials.

    <p>False</p> Signup and view all the answers

    What type of gloves should be worn routinely in a laboratory?

    <p>Disposable gloves</p> Signup and view all the answers

    Which of the following should never be disposed of in boxes? (Select all that apply)

    <p>Liquid wastes</p> Signup and view all the answers

    Which of the following equipment requires safety training and precautions?

    <p>Fume hoods</p> Signup and view all the answers

    Inhalation is the main route by which chemicals enter the body when working with solvents.

    <p>True</p> Signup and view all the answers

    Name one reason why accidental ingestion of toxic chemicals may occur in a laboratory.

    <p>Poor hygiene practices</p> Signup and view all the answers

    Compressed gas cylinders do not need to be secured when stored in the laboratory.

    <p>False</p> Signup and view all the answers

    Chemicals should be labeled with their common names, concentrations, and _____ to ensure safety.

    <p>hazards</p> Signup and view all the answers

    What is the proper procedure for recapping a needle?

    <p>Keep one hand behind the back of the needle and use the other hand to scoop the cover onto the needle.</p> Signup and view all the answers

    Match the following types of chemicals with their descriptions:

    <p>Corrosive chemicals = Can cause skin damage or destruction Toxic chemicals = Can cause harm or illness if absorbed Highly reactive chemicals = Can react dangerously with other substances Flammable chemicals = Can ignite at room temperature</p> Signup and view all the answers

    Sharps should be disposed of in a __________ resistant, leak-proof container.

    <p>puncture</p> Signup and view all the answers

    Match the following items with their proper disposal methods:

    <p>Needles = Puncture-resistant container Laboratory glassware = Cardboard boxes Broken glass = Puncture-resistant container Plasticware = Regular waste bags</p> Signup and view all the answers

    Which of the following chemicals should be stored in a well-ventilated area?

    <p>Toxic chemicals</p> Signup and view all the answers

    What must be done with contaminated laboratory glass before disposal?

    <p>It must be decontaminated.</p> Signup and view all the answers

    All chemicals can be disposed of as regular solid waste.

    <p>False</p> Signup and view all the answers

    What type of bench should be used for manipulation of radiolabelled elements?

    <p>Dedicated benches with specific bench covers</p> Signup and view all the answers

    Laboratory glassware is considered to be sharps for disposal purposes.

    <p>False</p> Signup and view all the answers

    What should be labeled on a sharps container?

    <p>Sharps</p> Signup and view all the answers

    What is the recommended solution for cleaning most spills?

    <p>1:50 solution of household bleach</p> Signup and view all the answers

    Alcohols are recommended as effective surface decontaminating agents.

    <p>False</p> Signup and view all the answers

    What immediate step should laboratory personnel take if they are contaminated with biological hazards?

    <p>Clean exposed skin or body surface with soap and water.</p> Signup and view all the answers

    For large spills containing organic material, use a _____ solution of household bleach.

    <p>1:10</p> Signup and view all the answers

    Match the following actions with their appropriate scenarios:

    <p>Cover the fire with an inverted beaker = For small extinguishable fires Call local authorities = For large fires Notify supervisor = After exposure to biological hazards Inspect fire extinguishers = Annually</p> Signup and view all the answers

    What class of extinguisher is generally appropriate for laboratory fire hazards?

    <p>Class BC or ABC</p> Signup and view all the answers

    A small laboratory fire is defined as one that can be extinguished within 5 minutes.

    <p>False</p> Signup and view all the answers

    What should laboratory personnel do after an exposure to biological hazards?

    <p>Follow appropriate reporting procedures.</p> Signup and view all the answers

    What should be confirmed in writing before beginning the installation process?

    <p>Vendor’s responsibilities for installation</p> Signup and view all the answers

    The laboratory should allow equipment to be used before verifying its performance.

    <p>False</p> Signup and view all the answers

    What should be developed to quickly verify performance after equipment installation?

    <p>A checklist of the expected performance specifications</p> Signup and view all the answers

    Before installation, check that the necessary _____ requirements have been met.

    <p>physical</p> Signup and view all the answers

    Match the following items with their importance in the acquisition of laboratory equipment:

    <p>Wiring diagrams = Necessary for installation guidance Operator’s manual = Essential for user instruction Trial period = Allows performance verification Maintenance contract = Ensures ongoing support</p> Signup and view all the answers

    Which of the following is NOT a physical requirement to verify before installation?

    <p>Staff training</p> Signup and view all the answers

    Having the manufacturer install the laboratory equipment can improve warranty conditions.

    <p>True</p> Signup and view all the answers

    What is one benefit of having the manufacturer install lab equipment?

    <p>Improved conditions of the warranty</p> Signup and view all the answers

    Which factor is crucial when selecting laboratory equipment?

    <p>Performance characteristics and accuracy</p> Signup and view all the answers

    Cost is the only consideration when purchasing laboratory equipment.

    <p>False</p> Signup and view all the answers

    What should be assessed regarding the availability of reagents when selecting equipment?

    <p>Reagents should be readily available and ideally provided free of charge for a limited time.</p> Signup and view all the answers

    The laboratory manager should provide information to support __________ of equipment.

    <p>selection</p> Signup and view all the answers

    Match the laboratory equipment considerations with their descriptions:

    <p>Performance characteristics = Accuracy and reproducibility for testing needs Facility requirements = Physical space needed for equipment Cost = Budget adherence for purchasing equipment Ease of operation = Simplicity for staff to use equipment</p> Signup and view all the answers

    What should laboratory management consider if equipment provided by donors is inappropriate?

    <p>Declining the equipment</p> Signup and view all the answers

    Leasing equipment is always more cost-effective than purchasing.

    <p>False</p> Signup and view all the answers

    Which language should instructions for laboratory equipment be available in?

    <p>A language understood by the staff</p> Signup and view all the answers

    What is indicated by a control sample value that falls within +2 SD on a Levey–Jennings chart?

    <p>The run is considered in control</p> Signup and view all the answers

    A Levey–Jennings chart can be used effectively without labeling the x-axis.

    <p>False</p> Signup and view all the answers

    What is the mean value represented in the given chart?

    <p>190.5</p> Signup and view all the answers

    A control sample must be run with each set of patient samples to ensure the runs are __________.

    <p>in control</p> Signup and view all the answers

    Match the following types of standard deviation with their representations:

    <p>+3 SD = 196.5 +2 SD = 194.5 +1 SD = 192.5 -1 SD = 188.5</p> Signup and view all the answers

    What percentage of values will fall between +1 standard deviation (SD) from the mean?

    <p>68.3%</p> Signup and view all the answers

    The coefficient of variation (CV) is calculated by dividing the standard deviation (SD) by the mean.

    <p>True</p> Signup and view all the answers

    What is the ideal maximum value for the coefficient of variation (CV) in laboratory analysis?

    <p>5%</p> Signup and view all the answers

    A Levey–Jennings chart shows the mean value and ________ SDs.

    <p>3</p> Signup and view all the answers

    Match the following standard deviation values with the corresponding percentage of data that falls within that range:

    <p>+1 SD = 68.3% +2 SD = 95.5% +3 SD = 99.7%</p> Signup and view all the answers

    When is an examination run considered 'in control'?

    <p>If a value is within ±2 SD</p> Signup and view all the answers

    What is the purpose of using the coefficient of variation (CV) in laboratory analysis?

    <p>To monitor precision.</p> Signup and view all the answers

    95.5% of values will fall between +2 standard deviations (SD) from the mean.

    <p>True</p> Signup and view all the answers

    What is a key skill that auditors must possess?

    <p>Effective communication and diplomacy</p> Signup and view all the answers

    Audits should only serve to identify problems without the expectation of taking any corrective actions.

    <p>False</p> Signup and view all the answers

    What should be recorded after identifying opportunities for improvement during an audit?

    <p>Actions taken</p> Signup and view all the answers

    A good auditor must have a good understanding of the laboratory's __________ management system.

    <p>quality</p> Signup and view all the answers

    Who is primarily responsible for initiating actions following an audit?

    <p>Quality manager</p> Signup and view all the answers

    Match the following actions with their respective purposes:

    <p>Identify opportunities for improvement = To enhance laboratory processes Implement corrective actions = To resolve identified problems Monitor procedures = To ensure ongoing effectiveness Form problem-solving teams = To analyze complex issues</p> Signup and view all the answers

    Staff with specialized expertise can serve as auditors in their specific areas.

    <p>True</p> Signup and view all the answers

    What might be necessary when the cause of a problem is not easily found?

    <p>A problem-solving team</p> Signup and view all the answers

    What do built-in controls primarily indicate in testing?

    <p>The success or failure of positive and negative controls</p> Signup and view all the answers

    Built-in controls monitor all conditions that could affect test results.

    <p>False</p> Signup and view all the answers

    What is one example of a test kit that utilizes built-in controls?

    <p>Rapid tests for infectious diseases such as HIV or influenza.</p> Signup and view all the answers

    If quality control results are not as expected, do not report __________ results.

    <p>patient</p> Signup and view all the answers

    Match the following types of controls with their descriptions:

    <p>Built-in controls = Controls integrated into the test kit that indicate its performance Traditional controls = Controls that mimic patient samples for testing accuracy Stock cultures = Use in microbiological examinations for validation of the test Procedural controls = Controls performed automatically with each test</p> Signup and view all the answers

    Which of the following is an important step to take when QC results are unexpected?

    <p>Investigate the issue</p> Signup and view all the answers

    Reading the manufacturer's product instructions is unnecessary for understanding built-in controls.

    <p>False</p> Signup and view all the answers

    What is one reason why built-in controls may provide a limited degree of confidence?

    <p>They do not monitor all conditions that could affect the test results.</p> Signup and view all the answers

    What type of error occurs when there is a variation in QC results with no apparent pattern?

    <p>Random error</p> Signup and view all the answers

    A systematic error can indicate a failure in the testing system that needs to be corrected.

    <p>True</p> Signup and view all the answers

    What are the two main patterns indicative of systematic error in QC results?

    <p>Shift and trend</p> Signup and view all the answers

    Measurement uncertainty represents a range of values in which the true value is reasonably expected to lie, typically estimated at __________ coverage.

    <p>95%</p> Signup and view all the answers

    Match the types of error with their characteristics:

    <p>Random error = No pattern, may not lead to repeated failures Systematic error = Indicates a failure in the testing process Shift = Consecutive results on one side of the mean Trend = Values gradually moving in one direction</p> Signup and view all the answers

    What must be done when a systematic error is identified?

    <p>Investigate and correct the issue</p> Signup and view all the answers

    Shifts occur when there are abrupt changes followed by seven or more consecutive QC results.

    <p>False</p> Signup and view all the answers

    What is the main purpose of Levey–Jennings charts in quality control?

    <p>To distinguish between normal variation and systematic error</p> Signup and view all the answers

    What is the primary purpose of performing evaluations on microbiological media?

    <p>To ensure sterility and performance of the media</p> Signup and view all the answers

    Blood agar made from human blood is preferred for identifying certain organisms.

    <p>False</p> Signup and view all the answers

    Name one organism used to test MacConkey agar.

    <p>Escherichia coli</p> Signup and view all the answers

    The __________ must maintain sufficient stock organisms to verify the performance of microbiological media.

    <p>laboratory</p> Signup and view all the answers

    Match the stock organism with the media it is primarily checked on:

    <p>Escherichia coli = MacConkey agar Staphylococcus aureus = Blood agar Neisseria gonorrhoeae = Chocolate agar Lactose fermenting organisms = EMB agar</p> Signup and view all the answers

    What should be done if a batch of selective media does not work as expected?

    <p>Discard the batch</p> Signup and view all the answers

    In-house media should have records maintained for each batch prepared.

    <p>True</p> Signup and view all the answers

    What two types of organisms should be inoculated on selective media?

    <p>One that should grow and one that should be inhibited</p> Signup and view all the answers

    Study Notes

    Foreword

    • Accuracy, timeliness, and reliability are major challenges for health laboratories worldwide.
    • Countries committed to building national capacities for detecting and responding to public health emergencies, as part of the International Health Regulations implementation process.
    • Sound quality management in health laboratories is crucial for the international community to trust test results in emergencies.
    • This handbook provides a comprehensive reference for laboratory quality management systems for all stakeholders, from management to bench-workers, based on ISO 15189 and CLSI GP26-A3 documents.
    • The handbook utilizes a 12-Quality System Essentials framework.

    Key Words

    • Laboratory quality management system
    • Laboratory quality
    • Laboratory quality systems
    • Laboratory information management system
    • Laboratory information system
    • Laboratory documents and records
    • Laboratory quality manual
    • Quality control
    • Laboratory facilities and safety
    • Laboratory equipment
    • Laboratory sample management
    • Laboratory sample transport
    • Laboratory purchasing and inventory
    • Laboratory assessment
    • Laboratory customer service
    • Occurrence management
    • Process improvement
    • Quality essentials
    • Laboratory process control
    • Clinical laboratory
    • ISO 15189
    • ISO 9001
    • ISO 17025
    • CLSI
    • GP26-A3
    • WHO

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    Related Documents

    Laboratory Quality Management System (LQMS) PDF
    LQMS Sample Transport & Quality Control Guidelines PDF

    Description

    Test your knowledge on the proper safety equipment and protocols for handling hazardous materials in a laboratory setting. This quiz covers the essentials of personal protective equipment, safety procedures, and the correct disposal of hazardous substances. Prepare to enhance your safety awareness in the lab!

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