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What is the MRD for articaine for a 115-pound patient?


A) 368 mg
B) 297 mg
C) 230 mg
D) 69 mg

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What is the formula for converting the maximum number of cartridges to milliliters?

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Multiply the number ...

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The manufacturer determines the MRD based on results from animal and human studies.The maximum doses determined by the manufacturer are approved by the U.S.Food and Drug Administration.


A) Both statements are true.
B) Both statements are false.
C) The first statement is true;the second statement is false.
D) The first statement is false;the second statement is true.

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Using the MRD from the previous question,how many cartridges of mepivacaine 3% can this 130-lb female receive?


A) 7.2 cartridges
B) 7.6 cartridges
C) 8.3 cartridges
D) 15.8 cartridges

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What is the maximum dose of levonordefrin in a healthy patient?


A) 0.2 mg
B) 1.0 mg
C) 0.04 mg
D) Epinephrine should be used instead of levonordefrin.

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What is the name of the local anesthetic that is marketed as a different quantity of solution per individual cartridge?


A) Lidocaine
B) Articaine
C) Mepivacaine
D) Butacaine

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How much vasoconstrictor is in one cartridge of 1:50,000?


A) 0.036 mg per cartridge
B) 0.09 mg per cartridge
C) 0.018 mg per cartridge
D) 0.017 mg per cartridge

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Using the information from the previous question,how many additional cartridges of 3% mepivacaine can the patient receive?


A) 0 cartridges of 3% mepivacaine;a different local anesthetic should be selected
B) 1.8 additional cartridges of 3% mepivacaine
C) 6.4 additional cartridges of 3% mepivacaine
D) 2.4 additional cartridges of 3% mepivacaine

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What is the formula for converting the MRD to number of cartridges?

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Divide the MRD in mi...

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What is the maximum number of cartridges of 1:50,000 epinephrine that can be administered to a medically compromised patient?


A) 5.5 cartridges
B) 11.1 cartridges
C) 2.2 cartridges
D) 1.1 cartridges

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Local anesthetic drug amounts are expressed in ratios.Vasoconstrictor drug amounts are expressed in percentages.


A) Both statements are true.
B) Both statements are false.
C) The first statement is true;the second statement is false.
D) The first statement is false;the second statement is true.

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What is the formula for calculating the healthy patient's MRD in mg?

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Multiply the patient's weight ...

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How much solution does the standard local anesthetic cartridge contain?


A) 1.6 mL
B) 1.7 mL
C) 1.8 mL
D) 2 mL

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If one has to estimate the amount of local anesthetic solution that was administered from one cartridge,the width of the rubber stopper would represent how much?


A) 2 mL of solution
B) 0.2 mL of solution
C) 0.02 mL of solution
D) Never estimate

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What is the limiting factor for anesthetic in a compromised patient?


A) Concentration of anesthetic
B) Vasoconstrictor
C) Patient's weight
D) Length of appointment

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