Egan's Chapter 36 Aerosol Therapy Questions with Correct Answers
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Course
Bio 342
Institution
Bio 342
Aerosol Correct Answer-A suspension of a solid or liquid particles in gas
Aerosols occur in nature as: Correct Answer--pollens
-Spores
-Dust
-Smoke
-Fog
-Mist
Medical Aerosols are generated with Correct Answer--atomizers
-nebulizers
-inhalers
(all are items that disperse matter into s...
Medical Aerosols are generated with Correct Answer--atomizers
-nebulizers
-inhalers
(all are items that disperse matter into small particles & suspend them
into a gas)
The aim of medical aerosol therapy is to: Correct Answer-Deliver a
therapeutic dose of the selected agent (drug) to the desired site of action.
Key characteristics of aerosols Correct Answer--aerosol output
-particle size
-desposition
,-aging
Aerosol Output Correct Answer--the mass of fluid or drug contained in
aerosol product by a nebulizer.
-the mass of aerosol generated per unit of time
Emitted Dose Correct Answer-The mass of drug leaving the mouthpiece
of a nebulizer or inhaler as aerosol
Aerosol particle size depends on: Correct Answer--the substance for
nebulization
- method used to generate the aerosol
-The environmental conditions surrounding the particle
The only reliable way to determine the characteristics of an aerosol
suspension is: Correct Answer-Laboratory measurement
2 most common laboratory methods used to measure medical aerosol
particle size distribution are: Correct Answer--cascade impaction
- laser diffraction
Cascade impactors Correct Answer-are designed to collect aerosols of
different sizes ranges on a series of stages ot plates
,Laser Diffraction Correct Answer-A computer is used to estimate the
range and frequency of droplet volumes crossing the laser beam.
Mass Median Aerodynamic Diameter
(MMAD) Correct Answer-measure of central tendency that describes
the particle diameter in micrometers in medical aerosols and pertains to
cascade impaction.
Volume Mean Diameter
(VMD) Correct Answer-the median diameter of an aerosol particle
measured in units of volume.
Geometric Standard Deviation
(GSD) Correct Answer-describes the variability of particle sizes in an
aerosol distribution set at 1 standard deviation above or below the
median (15.8% & 84.13)
The Greater the GSD Correct Answer-the wider the range of particle
sizes, and the more heterodisperse the aerosol
Monodisperse Correct Answer-Aerosols consisting of particles of
similar size (GSD less than or equal to 1.2)
Inhaled Mass Correct Answer-- AKA inhaled dose
- the amount of drug inhaled
, Fine-Particle Fraction Correct Answer-...
Respirable Mass Correct Answer-proportion of aerosolized drug of the
proper particle size to reach the lower respiratory tract
Whether aerosol particles that are inhaled into the lungs are deposited
into the respiratory tract depends on: Correct Answer--size
-shape
-motion
of the particled and on the physical characteristics of the airways and
breathing pattern.
Deposition Correct Answer-estimony of a witness taken on
interrogatories, either oral or in writing.
Inertial Impaction Correct Answer-occurs when suspended particles in
motion collide with and are deposited on a surface
-this is the primary deposition mechanism for particles larger than 5um
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