Exam (elaborations)
Respiratory Care Final Exam High-Yield Practice Tests
- Course
- Respiratory Care
- Institution
- Rush University
Respiratory Care Final Exam High-Yield Practice Tests
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Respiratory Care Final Exam High-Yield PracticeTests
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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