Question 1

For what kind of patient should the MRD of local anesthetic agents be decreased?

Accepted Answer

A)  For children 
B)  For elderly patients 
C)  For medically compromised patients 
D)  All of the above 
A)  For children 
B)  For elderly patients 
C)  For medically compromised patients 
D)  All of the above D

Question 2

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?

Accepted Answer

A)  3 mL of solution 
B)  0.3 mL of solution 
C)  0.03 mL of solution 
D)  Never estimate 
A)  3 mL of solution 
B)  0.3 mL of solution 
C)  0.03 mL of solution 
D)  Never estimate B

Question 3

Who determines the maximum doses of local anesthetics used in dentistry?
1) Council on Dental Therapeutics2. United States Pharmacopeial Convention3. American Dental Association4. Drug experts5. Drug manufacturer6. Dental professionals

Accepted Answer

A)  1, 2, 3, 4, 5, 6 
B)  1, 2, 3 
C)  4, 5, 6 
D)  Some other combination 
A)  1, 2, 3, 4, 5, 6 
B)  1, 2, 3 
C)  4, 5, 6 
D)  Some other combination A

Question 4

What is the formula for calculating the milligrams of solution in one cartridge of the selected anesthetic?

Accepted Answer

Multiply the number

Question 5

MRD of the local anesthetic agent should be decreased for patients with medically compromised situations,the elderly patient,and children.The lowest effective dose should be administered to any of these patients.

Accepted Answer

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. 
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.

Question 6

Which anesthetic/vasoconstrictor combination is most likely to limit the anesthetic drug?

Accepted Answer

A)  Lidocaine 2% 1:50,000 epinephrine 
B)  Lidocaine 2% 1:100,000 epinephrine 
C)  Mepivacaine 3% 1:20,000 levonordefrin 
D)  All of the above 
A)  Lidocaine 2% 1:50,000 epinephrine 
B)  Lidocaine 2% 1:100,000 epinephrine 
C)  Mepivacaine 3% 1:20,000 levonordefrin 
D)  All of the above

Question 7

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

Accepted Answer

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

Question 8

Which local anesthetic should be reduced or not used for a patient with chronic obstructive pulmonary disease?

Accepted Answer

A)  Lidocaine 
B)  Bupivacaine 
C)  Prilocaine 
D)  Mepivacaine 
A)  Lidocaine 
B)  Bupivacaine 
C)  Prilocaine 
D)  Mepivacaine

Question 9

Which of the following is the correct chart documentation for local anesthetic?

Accepted Answer

A)  The number of cartridges of local anesthetic administered. 
B)  The number of milligrams of local anesthetic administered. 
C)  The percentage of a cartridge of local anesthetic administered. 
D)  Any of the above 
A)  The number of cartridges of local anesthetic administered. 
B)  The number of milligrams of local anesthetic administered. 
C)  The percentage of a cartridge of local anesthetic administered. 
D)  Any of the above

Question 10

What is the number of milligrams per cartridge of 4% prilocaine?

Accepted Answer

A)  3.24 mg 
B)  2.89 mg 
C)  40 mg 
D)  30 mg 
A)  3.24 mg 
B)  2.89 mg 
C)  40 mg 
D)  30 mg

Question 11

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

Accepted Answer

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. 
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.

Question 12

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

Accepted Answer

Divide the MRD in mi

Question 13

The dental hygienist has already administered two cartridges of 2% lidocaine to a patient.The patient is reporting that he is not getting numb.What should the hygienist do at this time?

Accepted Answer

A)  Ask the dentist to administer more anesthetic solution. 
B)  Change to a different anesthetic solution. 
C)  Attempt to readminister the anesthetic, adjusting the technique. 
D)  Call the manufacturer to report a bad batch of anesthetic cartridges. 
A)  Ask the dentist to administer more anesthetic solution. 
B)  Change to a different anesthetic solution. 
C)  Attempt to readminister the anesthetic, adjusting the technique. 
D)  Call the manufacturer to report a bad batch of anesthetic cartridges.

Question 14

If the dental hygienist were to administer two different local anesthetics,which MRD would she use?

Accepted Answer

A)  Use the higher MRD 
B)  Use the lower MRD 
C)  Use the MRD for the local anesthetic administered in the greatest amount 
D)  Subtract the lower MRD from the higher MRD and use the resulting MRD 
A)  Use the higher MRD 
B)  Use the lower MRD 
C)  Use the MRD for the local anesthetic administered in the greatest amount 
D)  Subtract the lower MRD from the higher MRD and use the resulting MRD

Question 15

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

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

If a patient's MRD is 240 mg and 108 mg of 3% mepivacaine has already been administered,how much more mepivacaine can the patient receive?

Accepted Answer

A)  0 mg of 3% mepivacaine; a different local anesthetic should be selected 
B)  30 mg of 3% mepivacaine 
C)  348 mg of 3% mepivacaine 
D)  132 mg of 3% mepivacaine 
A)  0 mg of 3% mepivacaine; a different local anesthetic should be selected 
B)  30 mg of 3% mepivacaine 
C)  348 mg of 3% mepivacaine 
D)  132 mg of 3% mepivacaine

Question 18

Which of the following is the first step in calculating the additional dose of a different drug?

Accepted Answer

A)  Calculate how many milligrams of drug #1 have already been administered. 
B)  Calculate MRD of drug #2. 
C)  Review patient's history to determine appropriateness of new drug. 
D)  Consult with dentist and/or physician. 
A)  Calculate how many milligrams of drug #1 have already been administered. 
B)  Calculate MRD of drug #2. 
C)  Review patient's history to determine appropriateness of new drug. 
D)  Consult with dentist and/or physician.

Question 19

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

Accepted Answer

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

Question 20

What is the name of the local anesthetic that does not follow the above rule and is packaged in a different quantity of solution per individual cartridge?

Accepted Answer

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

For what kind of patient should the MRD of local anesthetic agents be decreased?

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?

Who determines the maximum doses of local anesthetics used in dentistry? 1) Council on Dental Therapeutics2. United States Pharmacopeial Convention3. American Dental Association4. Drug experts5. Drug manufacturer6. Dental professionals

What is the formula for calculating the milligrams of solution in one cartridge of the selected anesthetic?

MRD of the local anesthetic agent should be decreased for patients with medically compromised situations,the elderly patient,and children.The lowest effective dose should be administered to any of these patients.

Which anesthetic/vasoconstrictor combination is most likely to limit the anesthetic drug?

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

Which local anesthetic should be reduced or not used for a patient with chronic obstructive pulmonary disease?

Which of the following is the correct chart documentation for local anesthetic?

What is the number of milligrams per cartridge of 4% prilocaine?

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

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

The dental hygienist has already administered two cartridges of 2% lidocaine to a patient.The patient is reporting that he is not getting numb.What should the hygienist do at this time?

If the dental hygienist were to administer two different local anesthetics,which MRD would she use?

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

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

If a patient's MRD is 240 mg and 108 mg of 3% mepivacaine has already been administered,how much more mepivacaine can the patient receive?

Which of the following is the first step in calculating the additional dose of a different drug?

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

What is the name of the local anesthetic that does not follow the above rule and is packaged in a different quantity of solution per individual cartridge?

Local Anesthesia in Dental Hygiene Practice: an Introduction

Neurophysiology

Pharmacology of Local Anesthetic Agents

Pharmacology of Vasoconstrictors

Local Anesthetic Agents

Topical Anesthetic Agents

Preanesthetic Assessment

Armamentariumsyringe Preparation

Anatomic Considerations for the Administration of Local Anesthesia

Basic Injection Techniques

Maxillary Nerve Anesthesia

Mandibular Nerve Anesthesia

Local Anesthetic Complications

Legal Considerations and Risk Management

Filters

Exam 8: Determining Drug Doses

For what kind of patient should the MRD of local anesthetic agents be decreased?

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?

Who determines the maximum doses of local anesthetics used in dentistry? 1) Council on Dental Therapeutics2. United States Pharmacopeial Convention3. American Dental Association4. Drug experts5. Drug manufacturer6. Dental professionals

What is the formula for calculating the milligrams of solution in one cartridge of the selected anesthetic?

MRD of the local anesthetic agent should be decreased for patients with medically compromised situations,the elderly patient,and children.The lowest effective dose should be administered to any of these patients.

Which anesthetic/vasoconstrictor combination is most likely to limit the anesthetic drug?

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

Which local anesthetic should be reduced or not used for a patient with chronic obstructive pulmonary disease?

Which of the following is the correct chart documentation for local anesthetic?

What is the number of milligrams per cartridge of 4% prilocaine?

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

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

The dental hygienist has already administered two cartridges of 2% lidocaine to a patient.The patient is reporting that he is not getting numb.What should the hygienist do at this time?

If the dental hygienist were to administer two different local anesthetics,which MRD would she use?

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

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

If a patient's MRD is 240 mg and 108 mg of 3% mepivacaine has already been administered,how much more mepivacaine can the patient receive?

Which of the following is the first step in calculating the additional dose of a different drug?

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

What is the name of the local anesthetic that does not follow the above rule and is packaged in a different quantity of solution per individual cartridge?

Local Anesthesia in Dental Hygiene Practice: an Introduction

Neurophysiology

Pharmacology of Local Anesthetic Agents

Pharmacology of Vasoconstrictors

Local Anesthetic Agents

Topical Anesthetic Agents

Preanesthetic Assessment

Armamentariumsyringe Preparation

Anatomic Considerations for the Administration of Local Anesthesia

Basic Injection Techniques

Maxillary Nerve Anesthesia

Mandibular Nerve Anesthesia

Local Anesthetic Complications

Legal Considerations and Risk Management

Filters