Humidity And Aerosol Therapy I

32 Questions | By One_militantmind | Updated: Mar 21, 2022 | Attempts: 775

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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