The Most Common Error in Use of Pressurized Metered Dose

question 22

Multiple Choice

The most common error in use of pressurized metered dose inhalers (pMDIs) is

• A)actuation of the pMDI at total lung capacity.
• B)inadequate shaking and mixing of pMDI contents before use.
• C)failure to coordinate actuation of pMDI with inhalation.
• D)exhaling during pMDI actuation.

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Definitions:

Population Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values across a whole population.

Sample Size

The number of participants or observations included in a sample, used in statistical analysis to make inferences about a larger population.

T-Distribution

A probability distribution that is used to estimate population parameters when the sample size is small and the population standard deviation is unknown.

Standard Normal Distribution

A normal distribution with a mean of 0 and a standard deviation of 1, used as a basis for comparing other normal distributions.