202.018 Co/H2S Monitoring
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Questions and Answers

What is the purpose of the policy outlined in the text?

  • To define the roles of FFD members in firefighting operations
  • To specify the types of personal protective equipment (PPE) to be worn at structure fires
  • To establish protocols for monitoring CO and HCN at structure fires (correct)
  • To provide guidelines for handling hazardous materials in structure fires

    • When should members remove their self-contained breathing apparatus (SCBA) at a structure fire?

  • Upon receiving a signal from the incident commander
  • When the atmospheric conditions feel safe
  • As soon as they enter the structure
  • After the fire has been knocked down (correct)

    • Why should gas detection meters not be exposed to active fire conditions?

  • Because they are not designed for high temperatures
  • To avoid interference with firefighting operations
  • Because exposure to heat can damage the instruments (correct)
  • To prevent contamination of the detection sensors

    • What should members utilize for monitoring at structure fires according to the text?

    <p>Department-issued gas detection meters</p> Signup and view all the answers

    Who determines when structural firefighting personal protective equipment (PPE) can be removed?

    <p>Incident commander</p> Signup and view all the answers

    What are the symptoms of acute exposure to HCN?

    <p>Weakness, headache, confusion, and vertigo</p> Signup and view all the answers

    What may indicate that respiration has ceased or been inadequate for a few minutes?

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

    What is the half-life of HCN?

    <p>One hour</p> Signup and view all the answers

    What symptoms may occur after chronic exposure to cyanide?

    <p>Dermatitis and itching</p> Signup and view all the answers

    What changes have been produced by long-term exposures to cyanide?

    <p>Thyroid changes</p> Signup and view all the answers

    What is the recommended action if firefighters are found to have been operating in an IDLH atmosphere without SCBA or experiencing severe health effects?

    <p>Immediate medical evaluation is strongly recommended</p> Signup and view all the answers

    What is important when transporting the exposed firefighter to the hospital?

    <p>Advise the hospital about the presence of CO and HCN in the hazardous environment</p> Signup and view all the answers

    Where can information about Hazardous Substances Data Bank for Hydrogen Cyanide be found?

    <p>National Library of Medicine (NLM)</p> Signup and view all the answers

    What is the half-life of HCN?

    <p>One hour</p> Signup and view all the answers

    What should be done if a company with an HCN meter is not on the scene?

    <p>Request a unit with a meter to respond</p> Signup and view all the answers

    What is the short-term exposure limit (STEL) [skin] for HCN?

    <p>4.7 ppm</p> Signup and view all the answers

    When should SCBAs be utilized based on CO levels?

    <p>When CO is detected at 25 ppm or greater</p> Signup and view all the answers

    What should be done if an operational HCN meter is not available at the scene?

    <p>Readings of 20 ppm or lower of CO are required in order to operate without an SCBA</p> Signup and view all the answers

    What are the signs and symptoms of acute exposure to CO?

    <p>Headache, flushing, nausea, vertigo, weakness, irritability</p> Signup and view all the answers

    What is a characteristic of HCN exposure?

    <p>Causes rapid death due to metabolic asphyxiation</p> Signup and view all the answers

    What information should be supplied when reporting HCN exposures?

    <p>Areas monitored with corresponding readings</p> Signup and view all the answers

    When should field decontamination of PPE/SCBA be done?

    <p>Once an incident is under control</p> Signup and view all the answers

    What should happen if turnout gear has a reading higher than 5 ppm CO?

    <p>The gear should be cleaned again using an approved gear extractor</p> Signup and view all the answers

    "What is important for members to do prior to drinking and eating in Rehab?"

    <p>&quot;Practice good personal hygiene by washing hands&quot;</p> Signup and view all the answers

    What does CO combine with to form carboxyhemoglobin?

    <p>Reversibly with hemoglobin</p> Signup and view all the answers

    When should SCBAs be utilized based on HCN levels?

    <p>HCN is detected at 2 ppm</p> Signup and view all the answers

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