A 31-Year-Old Male Farm Worker Visits the Doctor with an Itchy

question 61

Multiple Choice

A 31-year-old male farm worker visits the doctor with an itchy rash on his chest. Physical examination reveals a five-centimeter-diameter annular and scaling plaque with central clearing on the chest. KOH preparation of skin scrapings reveals branching septate hyphae, and terbinafine topical application was recommended. Which of the following mechanisms of action explains the antifungal activity of this drug?

• A)Binding to ergosterol
• B)Inhibition of squalene epoxidase
• C)Blocking Beta-D-glucan synthesis
• D)Preventing mitosis by binding tubulin
• E)Inhibition of fungal protein synthesis

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Definitions:

Demand P

The desire and ability of consumers to purchase a good or service at a particular price, often represented as a demand curve.

Consumer Surplus

The discrepancy in the total money consumers are willing to invest in a good or service compared to what they really pay.

Market Demand Curve

A graphical representation showing the relationship between the price of a good and the total quantity demanded by all consumers in the market.

Magazine Circulation

The total number of copies of a magazine that are distributed to subscribers and retailers within a specific period.