A Patient Visits Your Clinic Often with Recurrent Respiratory Infections

question 42

Multiple Choice

A patient visits your clinic often with recurrent respiratory infections. Based upon their medical history, it appears they have been an active smoker for over 40 years. Select the statement that most accurately re?ects how this information may reveal why the patient is highly susceptible to respiratory pathogens.

• A) Smoking decreases the activity of neutrophils.
• B) Smoking directly inhibits B- and T-cell action.
• C) Smoking decreases the formation and effectiveness of complement proteins.
• D) Smoking can paralyze the ciliary escalator.

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Definitions:

Mean Value

The average of a set of numbers, calculated by dividing the sum of these numbers by the count of numbers in the set.

Model

A representation or abstraction of a process, system, or object that aims to explain, predict, or simulate real-world behavior, phenomena, or outcomes.

Regression Analysis

A set of statistical processes for estimating the relationships among variables.

Confidence Interval

A range of values, derived from the statistics of observed data, that is likely to contain the value of an unknown population parameter.