A Child Steps on a Nail and Sustains a Puncture

question 20

Multiple Choice

A child steps on a nail and sustains a puncture wound of the foot. Which is the most appropriate method for cleansing this wound?

• A) Wash wound thoroughly with chlorhexidine.
• B) Wash wound thoroughly with povidone-iodine.
• C) Soak foot in warm water and soap.
• D) Soak foot in solution of 50% hydrogen peroxide and 50% water.

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Definitions:

Positive Exponents

Indicate how many times a number, the base, is to be multiplied by itself.

Expression

A combination of symbols that represent values or operations in mathematics.

Z

Often represents a variable in mathematics or denotes the set of all integers in number theory.

Evaluate

To calculate the value of an algebraic expression by substituting variables with numerical values.