Humidity And Aerosol Therapy I

32 Questions | Total Attempts: 368

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Therapy Quizzes & Trivia

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Questions and Answers
  • 1. 
    Humidity is measured by
    • A. 

      Particle Size

    • B. 

      Partial Pressure

    • C. 

      Percentage

    • D. 

      Water Content

  • 2. 
    An Aerosol is defined as
    • A. 

      Water contained in a gas as vapor

    • B. 

      Particulate matter suspended in a gas

    • C. 

      The maximum amount of water content a gas can contain at a given temperature

    • D. 

      The actual water content of a gas at a given temperature

  • 3. 
    The definition of capacity is 
    • A. 

      Water contained in a gas as vapor

    • B. 

      Particulate matter suspended in a gas

    • C. 

      The maximum amount of water content a gas can contain at a give temperature

    • D. 

      The actual water content of a gas at a given temperature

  • 4. 
    Relative Humidity is defined as
    • A. 

      Water contained in a gas as vapor

    • B. 

      The actual water content of a gas at a given temperature

    • C. 

      The maximum amount of water content as gas can contain at a given temperature

    • D. 

      All of the above

  • 5. 
    Water Vapor is defined as 
    • A. 

      Water contained in a gas as vapor

    • B. 

      Particulate matter suspended in a gas

    • C. 

      The actual water content of a gas at a given time

    • D. 

      All of the above

  • 6. 
    You must deliver a maximal amount of humidity to a patients airway; how could this be accomplished using a wick humidifier
    • A. 

      Increase Thermostat to 37 C

    • B. 

      Keep water in reservoir at correct level

    • C. 

      Ensure total flow through humidifier exceeds patient requirements

    • D. 

      Use water traps or drainage bag in the circuit

  • 7. 
    You are administering oxygen to a patient via a bubble type humidifier, you know the humidity output is 14.5 mg/L. What is the humidity deficit
    • A. 

      14.5 mg/L

    • B. 

      29.4 mg/L

    • C. 

      43.9 mg/L

    • D. 

      47.0 mg/L

  • 8. 
    An advantage of the heated wick humidifier, compared with a bubble humidifier is
    • A. 

      High flow outputs at high humidity are possible

    • B. 

      It is designed for low flow oxygen delivery systems

    • C. 

      It only delivers cool aerosol

    • D. 

      None of the above

  • 9. 
    The majority of humidifiers operate using the principle of 
    • A. 

      Bernoulli's principle

    • B. 

      Ultrasonic waves

    • C. 

      Evaporation

    • D. 

      Ventruis principle

  • 10. 
    Ways to improve a humidifiers efficiency include
    • A. 

      Increase the temperature

    • B. 

      Increase the jets lateral pressure

    • C. 

      Increase the surface area

    • D. 

      Increase the gas velocity through the device

  • 11. 
    The magnitude of the pressure exerted by water vapor is dependent upon
    • A. 

      Temperature

    • B. 

      Relative humidity

    • C. 

      Barometric pressure

    • D. 

      All of the above

  • 12. 
    Factors that influence an aerosols deposition in the lungs include
    • A. 

      Particle size

    • B. 

      Gravity

    • C. 

      Inertia

    • D. 

      None of the above

  • 13. 
    The piezoelectric crystal in an ultrasonic nebulizer
    • A. 

      Converts electrical energy to mechanical energy

    • B. 

      Converts water to vapor

    • C. 

      Vibrates at a low frequency causing hydrolysis

    • D. 

      Cools the aerosol when operated with the fan

  • 14. 
    Which of the following humidifiers would be suitable for use for a patient requiring a simple oxygen mask
    • A. 

      Bubble humidifier

    • B. 

      Wick humidifier

    • C. 

      Heat pass over humidifier

    • D. 

      All of the above

  • 15. 
    You must provide humidified gas for a patient who is intubated; which of the following divides would be the most appropriate
    • A. 

      Bubble humidifier

    • B. 

      Wick humidifier

    • C. 

      A small volume nebulizer

    • D. 

      A heated wick humidifier

  • 16. 
    When checking oxygen in a patients room, you hear an audible chirping or whistling sound. The most likely cause is
    • A. 

      The patients inspiratory stridor

    • B. 

      The nurses call button

    • C. 

      The humidifier pop off

    • D. 

      Flow throughout the patients Venturi Mask

  • 17. 
    Contemporary high output humidifiers employ which of the following in their operation?
    • A. 

      Bernoullis principle

    • B. 

      A wick

    • C. 

      A piezoelectric crystal

    • D. 

      A heater

  • 18. 
    The most common type of humidifier in clinical practice is 
    • A. 

      The bubble humidifier

    • B. 

      The room humidifier

    • C. 

      The wick humidifier

    • D. 

      The pass over humidifier

  • 19. 
    An indication that a heat and moisture exchanger is becoming obstructed would be 
    • A. 

      The patients WOB is increased

    • B. 

      The water reservoir rarely needs filling anymore

    • C. 

      The resistance to tags flow decreases

    • D. 

      pressure decrease distal to the exchanger

  • 20. 
    A heat moisture exchanger should be
    • A. 

      Placed between the ventilator circuit, or oxygen therapy equipment, and the patients airway

    • B. 

      Used for short term applications (Less than 24 Hours)

    • C. 

      Monitored for obstruction

    • D. 

      None of the above

  • 21. 
    Which of the following humidifiers would be suitable for use with a mechanical ventilator?
    • A. 

      Fisher and Paykel MR850

    • B. 

      Smiths Medical Theramist Humidifier

    • C. 

      Hudson RCI Neptune

    • D. 

      A Large Volume USN

  • 22. 
    Advantages of Metered Dose Inhalers include
    • A. 

      Small size

    • B. 

      Ease of use

    • C. 

      Inert nature of the propellants

    • D. 

      All of the above

  • 23. 
    A valved holding chamber when used with an MDI may be helpful
    • A. 

      To improve the patients coordination and timing

    • B. 

      To improve the particle size inhaled by the patient

    • C. 

      In that it acts as a baffle and reservoir

    • D. 

      All of the above

  • 24. 
    When using and MDI, the patient should be instruct to
    • A. 

      Take a slow deep breath

    • B. 

      Squeeze the MDI shortly after inspiration has begun

    • C. 

      Hold his or her breath allowing inspiration

    • D. 

      Exhale passively

  • 25. 
    The most important aspect of using MDI's is 
    • A. 

      Equipment care and cleaning

    • B. 

      Patient instruction

    • C. 

      Use of a spacer

    • D. 

      Infection control