Dental Hygiene Local Anesthesia
Board Review latest study guide
describe the polarization of a nerve cell: - correct answer ✅ at rest, inside of a
cell is slightly (-) charged and outside is lightly (+) charged. (70 mv) difference.
describe the depolarization of a nerve cell: - correct answer ✅
when there is an
influx of Na+ ions and it causes the cell to become depolarized with a (+) charge.
describe the repolarization of a nerve cell: - correct answer ✅
begins
immediately after depolarization with potassium (+) ions leaving the cell in order
to restore equilibrium.
answer ✅
myelinated nerves conduct impulses _________ with ________ energy. - correct
faster; less
✅
what do the nodes of ranvier on myelinated nerves allow for? - correct answer
the passage of local anesthesia into the nerve cell.
what is the primary action of local anesthetics? - correct answer
perception/transmission by decreasing permeability of sodium ions.
✅
to block pain
where does the biotransformation of esters occur? - correct answer ✅
in the
pseudocholinesterase of blood plasma and is then excreted by the kidneys.
where does the biotransformation of amides occur? - correct answer
liver and is then excreted by the kidneys.
✅ in the
, Dental Hygiene Local Anesthesia
Board Review latest study guide
answer ✅
which local anesthetic type is less likely to admit an allergic reaction? - correct
amides
are resistant to hydrolysis in aqueous solutions. - correct answer
amides
✅
___________ are readily hydrolyzed in aqueous solutions, and _____________
esters;
✅
what is the first sensation that is lost with local anesthetics? - correct answer
pain
✅
what is the function of sodium chloride in local anesthetics? - correct answer
to maintain an isotonic solution
✅
what happens when there is infection in the area of an injection? - correct answer
because of its low pH, local anesthetic is less effective.
correct answer ✅
what is the most commonly used local anesthesia without a vasoconstricter? -
carbocaine 3%
✅
what is the safe does of a vasoconstricter in a healthy patient? - correct answer
.2 mg
correct answer ✅
what is the safe does of a vasoconstricter for a cardiac compromised patient? -
.04 mg
Board Review latest study guide
describe the polarization of a nerve cell: - correct answer ✅ at rest, inside of a
cell is slightly (-) charged and outside is lightly (+) charged. (70 mv) difference.
describe the depolarization of a nerve cell: - correct answer ✅
when there is an
influx of Na+ ions and it causes the cell to become depolarized with a (+) charge.
describe the repolarization of a nerve cell: - correct answer ✅
begins
immediately after depolarization with potassium (+) ions leaving the cell in order
to restore equilibrium.
answer ✅
myelinated nerves conduct impulses _________ with ________ energy. - correct
faster; less
✅
what do the nodes of ranvier on myelinated nerves allow for? - correct answer
the passage of local anesthesia into the nerve cell.
what is the primary action of local anesthetics? - correct answer
perception/transmission by decreasing permeability of sodium ions.
✅
to block pain
where does the biotransformation of esters occur? - correct answer ✅
in the
pseudocholinesterase of blood plasma and is then excreted by the kidneys.
where does the biotransformation of amides occur? - correct answer
liver and is then excreted by the kidneys.
✅ in the
, Dental Hygiene Local Anesthesia
Board Review latest study guide
answer ✅
which local anesthetic type is less likely to admit an allergic reaction? - correct
amides
are resistant to hydrolysis in aqueous solutions. - correct answer
amides
✅
___________ are readily hydrolyzed in aqueous solutions, and _____________
esters;
✅
what is the first sensation that is lost with local anesthetics? - correct answer
pain
✅
what is the function of sodium chloride in local anesthetics? - correct answer
to maintain an isotonic solution
✅
what happens when there is infection in the area of an injection? - correct answer
because of its low pH, local anesthetic is less effective.
correct answer ✅
what is the most commonly used local anesthesia without a vasoconstricter? -
carbocaine 3%
✅
what is the safe does of a vasoconstricter in a healthy patient? - correct answer
.2 mg
correct answer ✅
what is the safe does of a vasoconstricter for a cardiac compromised patient? -
.04 mg
