Low Flow Nasal Cannulas
9 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is a disadvantage of using a reservoir cannula?

  • Provides oxygen on demand
  • Delivers oxygen continuously
  • Senses negative effort by the patient
  • Unattractive (correct)

    • What distinguishes a demand flow cannula from other cannulas?

  • Provides similar FiO2 as when using 2 L/min with regular nasal cannula
  • Provides oxygen on demand
  • Waits for you to take a breath in and then delivers the oxygen (correct)
  • Delivers oxygen continuously

    • What is a key advantage of using a demand flow cannula?

  • Lower oxygen use and cost
  • Provides 'pulsed-dose' following patient effort
  • Increased mobility
  • Attempts to conserve oxygen (correct)

    • What is the flow range for low flow nasal cannulas in adults?

    <p>0.25 - 6 L/min</p> Signup and view all the answers

    What is the primary disadvantage of low flow nasal cannulas?

    <p>Unstable and easily dislodged</p> Signup and view all the answers

    Which type of reservoir cannula reduces O2 use by approximately 50%?

    <p>Mustache reservoir cannula</p> Signup and view all the answers

    What is the reason for achieving high flow rates with a demand flow cannula?

    <p>Gas is heated and humidified</p> Signup and view all the answers

    What benefit does a demand flow cannula provide for every 10L/min of gas flow?

    <p>It provides 1cmH2O during expiration to help hold the lungs open</p> Signup and view all the answers

    What is the primary function of an air entrainment blender in a demand flow cannula?

    <p>To deliver high flow rates up to 40-60 L/min</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser