Why Is Protein Binding an Important Characteristic of Local Anesthetic

question 16

Multiple Choice

Why is protein binding an important characteristic of local anesthetic drugs?

• A) Increased protein binding allows more cations (RNH⁺)to bind to the receptor sites within the sodium channels,prolonging the presence of anesthetic at the site of action.
• B) Increased protein binding allows more RN molecules to bind to the receptor sites within the sodium channels,prolonging the presence of anesthetic at the site of action.
• C) Decreased protein binding allows more cations (RNH⁺)to bind to the receptor sites within the sodium channels,prolonging the presence of anesthetic at the site of action.
• D) Decreased protein binding allows more RN molecules to bind to the receptor sites within the sodium channels,prolonging the presence of anesthetic at the site of action.

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Definitions:

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