Halothane
Inhalation agent for general ansthesia
Intravenous agent for general ansthesia
Desrlurane
Inhalation agent for general ansthesia
Intravenous agent for general ansthesia
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Tetrodotoxin acts like local anesthetics and is:
found in a number oftissues ofthe puffer or blowfish
H1 antihistamine
produced by certain stmins of algae
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Saxitoxin acts like local anesthetics and is:
produced by certain stmins of algae
H1 antihistamine
found in a number oftissues ofthe puffer or blowfish
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Which of the following is a containdication or precaution to use of Prilocaine?
Hepatic disease
Rleumatoid adhritis
Type II diabetes
Biliary tract disease
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Which trical anesthetic has no place in the routine practice of dentistry?
Cocaine
Articaine
Lidocaine
Bupivacaine
Prilocaine
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Prilocaine produces ___?___ vasodilation than do equal amounts of Lidocaine
less
more
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Local anesthetics theoretically should be less effective in acutely inflamed tissue than in normal tissue because in inflamed tissue what happens?
The pH decreases, thus decreasing available free base
The pH rises, thus inactivating the anesthetic
The pH rises, thus decreasing available free base
The pH remains the same, the extracellular fluid dilutes the anesthetic
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A dental rnesthetic carpule contains 1.8 ml of a 2% solution of lidocaine with 1:100,000 epinephrine. How much lidocline and epinephrine does the carpule contain?
36 mg lidocaine and 0.018 mg epinephrine
36 mg lidocaine and 0.18 mg epinephrine
3.6 mg lidocaine and 0.018 mg epinephrine
3.6 mg lidocaine and 0.18 mg epinephrine
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When tissue conditions are normal (pH 7.4), approxrmately ___?___ portion of an infiltrated local anesthetic is in the form of the free base (non-ionized form).
10-20%
20-30%
5-10%
30-40%
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1 ml of a 2% solution of lidocaine with 1:100,000 epinephrine contains
20 mg of lidocaine and 0.010 mg of epinephrine.
2 mg of lidocaine and 0.010 mg of epinephrine.
20 mg of lidocaine and 0.10 mg of epinephrine.
2 mg of lidocaine and 0.10 mg of epinephrine.
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Epinephrine (vasoconstrictor) is included in local anesthetics for the following reasons: 1. It prolongs the duration of action 2. It reduces toxicity 3. It reduces the rate of vascular absorption 4. lt provides a hemostatic effect to reduce bleeding at injection site
All of the above
1 and 3
2 and 4
1,2,3
1 and 4
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The maximal recommended adult dose of Lidocaine is 300 mg. How many milliliters of 2% Lidocaine need to be given to reach this level?
15 milliliters
7.5 milliliters
10 milliliters
20 milliliters
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The maximum reconmended dose of a local anesthetic that can be administered to a child < 10 years of age is determined by
Weight
Age
Height
Gender
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There are ___?___ mg of Lidocaine in every milliliter of 2% Lidocaine
20
15
30
36
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Maximum recommended doses of 2% Lidocaince (Xylocaine)
300 mg
400 mg
90 mg
200 mg
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Maximum recommended dose of 2% Lidocaince (Xylocaine)
15 ml
10 ml
18 ml
25 ml
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Maximum recommended doses of 3% Mepivacaince (Carbocaine)
300 mg
400 mg
90 mg
200 mg
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Maximum recommended doses of 3% Mepivacaince (Carbocaine)
10 ml
15 ml
18 ml
25 ml
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Maximum recommended doses of 4% Prilocaince (Citanest)
400 mg
300 mg
90 mg
200 mg
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