CDCA Local exam questions with
verified solutions18
Mepivicaine MRD - ANSWERS-400 mg
3.0 mg/lb
Mepivicaine types - ANSWERS-2% mepivicaine 1:20,000 levo
3% mepivicaine plain
What is plain solution recommended for? - ANSWERS-1. when vasoconstrictors are
contrainidicated
2. procedure is only needed for 30 min
3. geriatric
4. pedo
5. mentally-challanged
Where is prilocaine metabolized - ANSWERS-liver, kidney and lungs
Prilocaine MRD - ANSWERS-600 mg
4.0 mg/lb
Prilocaine types - ANSWERS-4% prilocaine 1:200,000
4% prilocaine plain
What is contrainidicated for patients with methomoglobenemia? - ANSWERS-Benzocaine
,Prilocaine
Articaine MRD - ANSWERS-None
T/F. All local agents are vasoconstrictors - ANSWERS-False; vasodilators
What is an undesirable quality of local agents? - ANSWERS-Vasodilation
Reasons why vasodilation is an undesirable quality - ANSWERS-1. increased absorption
2. Increased risk of adverse effects
3. decreased depth and duration
4. increased bleeding
Reasons why vasoconstrictors are a desirable quality - ANSWERS-1. decreased absorption
2. increased depth and duration
3. decreased bleeding
Side effects of vasoconstrictors - ANSWERS-1. increased blood pressure and force of heart
contraction
2. dilation of smooth muscles
3. Burning sensation due to lowered pH of solution
What is a common adverse effect of epi? - ANSWERS-angina
What is a naturally occurring catecholamine? What is a synthetic catecholamine? - ANSWERS-
epi; levo
Where is epi made in the body? - ANSWERS-adrenal gland
, What is the most potent vasoconstrictor? - ANSWERS-epi
T/F. Sodium bisulfite is added to the local anesthetic as a preservative - ANSWERS-FALSE; its
added to the vasoconstrictor
If a person is allergic to sodium bisulfite, what is a good local option? - ANSWERS-mepivicaine
plain because the sodium bisulfite is in the vasoconstrictor
Shelf life for local with a vasoconstrictor - ANSWERS-18 months
shelf life for local without vasoconstrictors - ANSWERS-36 months
T/F. sodium bisulfite lowers the pH level. - ANSWERS-TRUE
it causes the burning sensation when injected
Amount of vasoconstrictor is 1:20,000 solution - ANSWERS-0.09
Amount of vasoconstrictor in 1:50,000 solution - ANSWERS-0.036
Amount of vasoconstrictor in 1:100,000 - ANSWERS-0.018
Amount of vasoconstrictor in 1:200,000 - ANSWERS-0.009
MRD of epi for healthy patient - ANSWERS-0.2 mg
MRD of epi for cardiac patient - ANSWERS-0.04 mg
verified solutions18
Mepivicaine MRD - ANSWERS-400 mg
3.0 mg/lb
Mepivicaine types - ANSWERS-2% mepivicaine 1:20,000 levo
3% mepivicaine plain
What is plain solution recommended for? - ANSWERS-1. when vasoconstrictors are
contrainidicated
2. procedure is only needed for 30 min
3. geriatric
4. pedo
5. mentally-challanged
Where is prilocaine metabolized - ANSWERS-liver, kidney and lungs
Prilocaine MRD - ANSWERS-600 mg
4.0 mg/lb
Prilocaine types - ANSWERS-4% prilocaine 1:200,000
4% prilocaine plain
What is contrainidicated for patients with methomoglobenemia? - ANSWERS-Benzocaine
,Prilocaine
Articaine MRD - ANSWERS-None
T/F. All local agents are vasoconstrictors - ANSWERS-False; vasodilators
What is an undesirable quality of local agents? - ANSWERS-Vasodilation
Reasons why vasodilation is an undesirable quality - ANSWERS-1. increased absorption
2. Increased risk of adverse effects
3. decreased depth and duration
4. increased bleeding
Reasons why vasoconstrictors are a desirable quality - ANSWERS-1. decreased absorption
2. increased depth and duration
3. decreased bleeding
Side effects of vasoconstrictors - ANSWERS-1. increased blood pressure and force of heart
contraction
2. dilation of smooth muscles
3. Burning sensation due to lowered pH of solution
What is a common adverse effect of epi? - ANSWERS-angina
What is a naturally occurring catecholamine? What is a synthetic catecholamine? - ANSWERS-
epi; levo
Where is epi made in the body? - ANSWERS-adrenal gland
, What is the most potent vasoconstrictor? - ANSWERS-epi
T/F. Sodium bisulfite is added to the local anesthetic as a preservative - ANSWERS-FALSE; its
added to the vasoconstrictor
If a person is allergic to sodium bisulfite, what is a good local option? - ANSWERS-mepivicaine
plain because the sodium bisulfite is in the vasoconstrictor
Shelf life for local with a vasoconstrictor - ANSWERS-18 months
shelf life for local without vasoconstrictors - ANSWERS-36 months
T/F. sodium bisulfite lowers the pH level. - ANSWERS-TRUE
it causes the burning sensation when injected
Amount of vasoconstrictor is 1:20,000 solution - ANSWERS-0.09
Amount of vasoconstrictor in 1:50,000 solution - ANSWERS-0.036
Amount of vasoconstrictor in 1:100,000 - ANSWERS-0.018
Amount of vasoconstrictor in 1:200,000 - ANSWERS-0.009
MRD of epi for healthy patient - ANSWERS-0.2 mg
MRD of epi for cardiac patient - ANSWERS-0.04 mg
