Session 4 PI Questions
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Questions and Answers

Which of the following is a carrier gas used in anesthesia?

  • Desflurane
  • CO2
  • N2O (correct)
  • HCO3
  • The following Arterial Blood Gas Results are obtained from a canine patient in the ICU at sea level (760 mm Hg) and breathing 60% O2 in a therapy cage: What was the patient’s FiO2 when the sample was taken?

  • 0.6 (correct)
  • 60
  • 0.4
  • You are not able to determine the FIO2
  • This US medical gas cylinder pictured contains which gas? (Picture shows a blue tank)

  • O2
  • CO2
  • N2
  • N2O (correct)
  • A gauge on a one stage oxygen regulator connected to a H tank is reading 1500 PSI. The tank contains how much O2? For the purposes of this question, H tank for oxygen contains 6,910 liters with a filling pressure of 2,200 PSI.

    <p>4,710 liters</p> Signup and view all the answers

    What prevents connection of a N2O Size H cylinder to a O2 regulator?

    <p>Diameter Index Safety System</p> Signup and view all the answers

    Which of the following is true concerning medical gas regulators?

    <p>one and two stage medical gas regulators are used with compressed oxygen</p> Signup and view all the answers

    The gauge on this one stage Nitrous Oxide regulator is reading 500 psi. Since this is a size E tank, the tank contains… For the purposes of this question, E size tank for N2O is 1,590 Liters with a filling pressure of 750 PSI

    <p>You cannot determine the volume remaining unless you weight the tank</p> Signup and view all the answers

    Why is a two stage regulator useful when supplying O2 to an anesthesia machine having an attached ventilator?

    <p>a two stage regulator allows the operator to increase or decrease the outlet pressure</p> Signup and view all the answers

    Which of the following is true concerning medical gas flowmeters?

    <p>the flowmeter converts the regulators output pressure into a flow that is then matched to the patient and breathing circuit</p> Signup and view all the answers

    . A patient connected to an anesthesia machine, sevoflurane vaporizer and circle rebreathing circuit is stable under sevoflurane anesthesia. What will happen to the composition of gas in the breathing circuit if the O2 flow from the flowmeter is increased from 1L/min to 2L/min?

    <p>the sevoflurane concentration in the breathing circuit will not change</p> Signup and view all the answers

    A patient connected to an anesthesia machine, sevoflurane vaporizer and circle rebreathing circuit is stable under sevoflurane anesthesia. What will happen to the composition of gas in the breathing circuit if the O2 flush valve is opened?

    <p>the inhalant concentration in the breathing circuit will decrease</p> Signup and view all the answers

    What property of inhalant anesthetics is responsible for modern anesthetic vaporizers being agent specific?

    <p>vapor pressure</p> Signup and view all the answers

    The vapor pressure of an inhalant anesthetic…?

    <p>determines the maximum inhalant concentration that is possible to deliver at a given temperature</p> Signup and view all the answers

    A patient in an O2 cage is breathing oxygen at an FiO2 = 0.3. This patient…

    <p>is breathing 30% O2</p> Signup and view all the answers

    Which of the following is true concerning anesthesia machines?

    <p>all anesthesia machines have the same basic component parts</p> Signup and view all the answers

    Which is the correct flow pattern of a carrier gas through an anesthesia machine?

    <p>Bulk Storage → Regulator → Flowmeter → Vaporizer → Circuit</p> Signup and view all the answers

    What is true about a two stage regulator?

    <p>is commonly used with large animal machines having an integral ventilator</p> Signup and view all the answers

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