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Respiratory Care Final Exam High-Yield Practice Tests

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Respiratory Care Final Exam High-Yield Practice Tests

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  • August 7, 2024
  • 22
  • 2024/2025
  • Exam (elaborations)
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Respiratory Care Final Exam High-Yield Practice
Tests

What is the primary goal of humidity therapy? -ANS>maintain normal physiologic
conditions



Indications for warming inspired gases are: -ANS>-treating patient whose airways
are reactive to cold

-providing humidification when the upper airway is bypassed

-treating a patient with a low body temperature (hypothermia)



Administration of dry gases at flows exceeding 4 L/min can cause which of the
following?

-Structural damage

-heat loss

-water loss -ANS>all three



Inhalation of dry gases causes what to occur with the airways? -ANS>-increased
viscosity

-impair mucociliary motility

-increased airway irritability

,What inspired conditions should be maintained when delivering medical gases to
the nose and mouth? -ANS>50% RH at 20-22 degrees C



What inspired conditions should be kept when delivering medical gases directly
into the trachea through and endotracheal tube or tracheotomy tube? -ANS>100%
RH at 32-35 degrees C



Clinical indications for delivering cool humidified gas include which of the
following?

-Postextubation edema

-upper airway inflammation

-croup

-epiglottitis -ANS>all of them



What device adds molecular water to gas? -ANS>humidifier



What are the factors that affect a humidifier's performance? -ANS>-temperature

-contact time

-surface area



What is the most important factor determining a humidifier's performance? -
ANS>temperature



the greater the temperature of the gas, the: -ANS>more water vapor it can hold

, what is the simplest way to increase the humidity output of a humidifier? -
ANS>increase the temperature or either the water or the gas



Which of the following are clinical signs and symptoms of inadequate airway
humidification?

-atelectasis

-dry cough

-increased airway resistance

-increased incidence of infection

-increased WOB -ANS>all of them



which of the following are true about humidification and contact time?

-the longer a gas is exposed to water, the greater the amount of evaporation

-the rate of gas flow through a humidifier determines contact time

-low flows decrease and high flows increase relative humidity output

-bubble humidifier contact time depends on the water column depth -ANS>-the
longer a gas is exposed to water, the greater the amount of evaporation

-the rate of gas flow through a humidifier determines contact time

-bubble humidifier contact time depends on the water column depth



What are the three types of humidifiers used in the clinical setting? -ANS>-
passover

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