Impetigo Can Be Caused by Either Staphylococcus Aureus or Streptococcus

question 47

Multiple Choice

Impetigo can be caused by either Staphylococcus aureus or Streptococcus pyogenes. Culture- based identification of the causative organism can be complicated by _______.

• A) their common optimal growth temperature, 37°C
• B) the fastidious nature of both organisms
• C) the ability of S. aureus to kill S. pyogenes
• D) the common surface antigens of these two organisms

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Definitions:

Unit Variable Cost

The cost attributed to each unit produced, varying with the level of output.

Selling Price

The amount of money for which a product or service is sold to the customer.

Contribution Margin

The selling price per unit, minus the variable cost per unit, which helps in determining the profitability of products.

Break-even Chart

A graphical representation that shows the point at which total costs and total revenue are equal, indicating no net loss or gain.