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WREB Study: Local Anesthesia & NO Questions

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WREB Study: Local Anesthesia & NO Questions How does local anesthesia work? a. it initiates depolarization b. it blocks depolarization c. it allows sodium transport across the nerve membrane - � ... �✔b. it blocks depolarization Which of the following makes local anesthetic most effective? a. rapid injection b. injecting a larger amount of anesthetic c. lipid solubility - ✔✔c. lipid solubility Local anesthetics typically produce vasoconstriction. True False - ✔✔False Amide-type local anesthetics are metabolized in? a. liver b. lungs c. kidneys d. blood plasma - ✔✔a. liver Where is the anesthetic Mepivacaine metabolized? a. liver b. lungs c. kidneys d. blood plasma - ✔✔a. liver Which of the following is true of the ester classification of local anesthetic agents? a. the primary bi-product of the metabolism of esters is methmoglobinemia b. esters are metabolized by the enzyme pseudocholinesterase c. some metabolism of esters can occur in the lungs d. examples of esters include Lidocaine 2% and Prilocaine 4%. - ✔✔b. esters are metabolized by the enzyme pseudocholinesterase What are the important clinical effects of vasodilation of local anesthetics? a. will increase the rate of absorption of the local anesthetic agent into the blood b. it will decrease the duration of pain control of the local anesthetic agent c. it will increase the level of local anesthetic in the blood d. all of the above - ✔✔d. all of the above Local anesthetics can cross the placenta and enter the circulatory system of the fetus. True False - ✔✔True If the use of a certain local anesthetic agent is absolutely contraindicated for a patient, this means: a. under no circumstances should this agent be administered to the patient due to the risk of a potentially toxic or lethal reaction b. the agent may be administered to the patient afte [Show More]

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