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Chapter 39 - Aerosol Drug Therapy (121: Test 2) Questions with Correct Answers
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Chapter 39 - Aerosol Drug Therapy (121: Test 2) Questions with Correct Answers
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Chapter 39 - Aerosol Drug Therapy (121: Test 2)Questions with Correct Answers
Most modern jet nebulizers are powered by? Correct Answer-High
pressure air or oxygen
This is the medication that remains in the SVN after the device stops
generating aerosol and "runs dry". Correct Answer-Residual Drug
Volume (Dead Volume)
The residual drug volume (of a 3 ml dose of drug) can range from:
Correct Answer-0.5 - 2.2 ml of drug
The more drug available to be turned to aerosol in an SVN, the
________ % of the drug that remains as residual volume. Correct
Answer-less
With higher flow of gas to the nebulizer, the particle size generated is
__________ and the time required for nebulization is ___________.
Correct Answer-smaller and shorter
What happens if gas flow or pressure to a nebulizer is too low? Correct
Answer-This can result in negligible nebulizer output (not enough
aerosol will be produced)
,True/False: Repeated use of nebulizers causes output to become less
efficient. Correct Answer-False: output is not effected in reused
nebulizers as long as the nebulizer was cleaned properly.
Gas density affects what two things? Correct Answer-1. Aerosol
Generation
2. Gas delivery to the lungs
What are the 3 characteristics of drug formulation that can affect
performance of SVN's? Correct Answer-1. Viscosity
2. Surface Tension
3. Homogeneity
What 2 things can affect particle size and concentration of the drug
remaining in a small volume neb? Correct Answer-Humidity and
Temperature
What are the four categories of jet SVN's? Correct Answer-1. continuous
nebulizer w/ simple reservoir
2. continuous nebulizer with collection reservoir bag
3. breath-enhanced nebulizer
4. breath-actuated nebulizer
What is the most commonly used SVN? Correct Answer-Constant
Output Nebulizer
, True/False: The constant output nebulizer wastes medication when
compared to other nebs. Correct Answer-True: because aerosol is
constantly produced throughout the patient's breathing cycle, some of it
gets wasted.
True/False: aerosolization past the point of initial sputter is generally
considered useless. Correct Answer-True
Why do many clinicians prefer not to use a mask for SVN therapy?
Correct Answer-Because the nose works as an efficient filter of particles
larger than 5 μm.
A concern with continuous bronchodilator therapy is ________? Correct
Answer-increased drug concentration (which can cause drug toxicity
over time).
What does SPAG stand for? Correct Answer-Small Particle Aerosol
Generator
True/False: Slow inspiratory flow optimizes SVN aerosol deposition.
Correct Answer-True
What was the SPAG originally developed for? Correct Answer-Studying
pathogenic aerosols
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