Question 1

A 3% solution of mepivacaine contains ________ mg/ml.

Accepted Answer

The answer of A 3% solution of mepivacaine contains ________...

Question 2

What is the MRD of vasoconstrictor for 2% lidocaine, 1:100,000 epinephrine for a healthy patient?

Accepted Answer

A)  0.02 mg 
B)  2.0 mg 
C)  1.0 mg 
D)  0.2 mg 
A)  0.02 mg 
B)  2.0 mg 
C)  1.0 mg 
D)  0.2 mg

Question 3

What is the MRD of 4% prilocaine plain for a healthy 205 pound male patient?

Accepted Answer

The MRD for prilocaine plain is 3.6 mg/l

Question 4

Using Young's rule, calculate the mg of 2% lidocaine a 10-year old, 60-pound child can receive before reaching the MRD?

Accepted Answer

A)  125 mg 
B)  136 mg 
C)  200 mg 
D)  227 mg 
A)  125 mg 
B)  136 mg 
C)  200 mg 
D)  227 mg

Question 5

Calculations of maximum safe doses for vasoconstrictors are determined by mg/lb or mg/kg.

Accepted Answer

A) True 
 B)False

Question 6

The maximum recommended dose per appointment for lidocaine is ________.

Accepted Answer

The answer of The maximum recommended dose per appointment for...

Question 7

The maximum mg/lb of prilocaine per appointment is ________.

Accepted Answer

The answer of The maximum mg/lb of prilocaine per appointment...

Question 8

The maximum mg/lb of mepivacaine per appointment is ________.

Accepted Answer

The answer of The maximum mg/lb of mepivacaine per appointment...

Question 9

Using Clark's rule, calculate the milligrams of 2% lidocaine an 8-year old, 60 pound child can receive before reaching MRD.

Accepted Answer

A)  60 mg 
B)  120 mg 
C)  200 mg 
D)  300 mg 
A)  60 mg 
B)  120 mg 
C)  200 mg 
D)  300 mg

Question 10

A patient with cardiovascular disease has received two cartridges of 4% articaine, 1:200:000 epinephrine. How many milligrams of vasoconstrictor has this patient received? How many additional cartridges of the same drug solution can the patient receive?

Accepted Answer

A)  0.009 mg received; two additional cartridges 
B)  0.018 mg received; two additional cartridges 
C)  0.18 mg received; no additional cartridges 
D)  0.036 mg received; no additional cartridges 
A)  0.009 mg received; two additional cartridges 
B)  0.018 mg received; two additional cartridges 
C)  0.18 mg received; no additional cartridges 
D)  0.036 mg received; no additional cartridges

Question 11

At a concentration of 4%, the amount of drug in a 1.8 ml cartridge is 7.2 mg.

Accepted Answer

A) True 
 B)False

Question 12

Using Clark's rule, calculate the maximum number of milligrams of 3% mepivacaine a 5-year old, 40-pound child can receive before reaching the MRD?

Accepted Answer

A)  40 mg 
B)  80 mg 
C)  106 mg 
D)  117 mg 
A)  40 mg 
B)  80 mg 
C)  106 mg 
D)  117 mg

Question 13

The maximum recommended dose for each solution is dependent on the drug that limits the total volumes that may be delivered.

Accepted Answer

A) True 
 B)False

Question 14

Match the following:
-Lidocaine

Accepted Answer

A)  MRD 90 mg 
B)  MRD 0.04 mg 
C)  3.2 mg/lb 
D)  3.6 mg/lb 
E)  MRD 500 mg
F) 54 mg/cartridge
G) Based on child's weight
H) 1.8 ml
I) MRD 1.0 mg
J) Based on child's age 
A)  MRD 90 mg 
B)  MRD 0.04 mg 
C)  3.2 mg/lb 
D)  3.6 mg/lb 
E)  MRD 500 mg
F) 54 mg/cartridge
G) Based on child's weight
H) 1.8 ml
I) MRD 1.0 mg
J) Based on child's age

Question 15

To calculate the milligrams of drug delivered, multiply the total number of cartridges by the total milligrams of drug in each cartridge.

Accepted Answer

A) True 
 B)False

Question 16

A 140-pound patient received 144 mg of 2% lidocaine plain. How many more milligrams of the same drug can the patient receive without exceeding the MRD? Provide mathematical formulas required to calculate the correct answer.

Accepted Answer

The MRD for 2% lidocaine plain is 3.2 mg

Question 17

Match the following:
-Bupivacaine

Accepted Answer

A)  MRD 90 mg 
B)  MRD 0.04 mg 
C)  3.2 mg/lb 
D)  3.6 mg/lb 
E)  MRD 500 mg
F) 54 mg/cartridge
G) Based on child's weight
H) 1.8 ml
I) MRD 1.0 mg
J) Based on child's age 
A)  MRD 90 mg 
B)  MRD 0.04 mg 
C)  3.2 mg/lb 
D)  3.6 mg/lb 
E)  MRD 500 mg
F) 54 mg/cartridge
G) Based on child's weight
H) 1.8 ml
I) MRD 1.0 mg
J) Based on child's age

Question 18

A 2% solution of lidocaine contains ________ mg/ml.

Accepted Answer

The answer of A 2% solution of lidocaine contains ________...

Question 19

Complete the missing information in the table below.

Accepted Answer

See bold n

Question 20

What is the MRD in cartridges for 4% prilocaine, 1:200,000 epinephrine for a healthy 150 pound patient?

Accepted Answer

A)  5 
B)  6 
C)  8 
D)  11 
A)  5 
B)  6 
C)  8 
D)  11

Exam 7: Dose Calculations for Local Anesthetic Solutions

A 3% solution of mepivacaine contains ________ mg/ml.

What is the MRD of vasoconstrictor for 2% lidocaine, 1:100,000 epinephrine for a healthy patient?

What is the MRD of 4% prilocaine plain for a healthy 205 pound male patient?

Using Young's rule, calculate the mg of 2% lidocaine a 10-year old, 60-pound child can receive before reaching the MRD?

Calculations of maximum safe doses for vasoconstrictors are determined by mg/lb or mg/kg.

The maximum recommended dose per appointment for lidocaine is ________.

The maximum mg/lb of prilocaine per appointment is ________.

The maximum mg/lb of mepivacaine per appointment is ________.

Using Clark's rule, calculate the milligrams of 2% lidocaine an 8-year old, 60 pound child can receive before reaching MRD.

A patient with cardiovascular disease has received two cartridges of 4% articaine, 1:200:000 epinephrine. How many milligrams of vasoconstrictor has this patient received? How many additional cartridges of the same drug solution can the patient receive?

At a concentration of 4%, the amount of drug in a 1.8 ml cartridge is 7.2 mg.

Using Clark's rule, calculate the maximum number of milligrams of 3% mepivacaine a 5-year old, 40-pound child can receive before reaching the MRD?

The maximum recommended dose for each solution is dependent on the drug that limits the total volumes that may be delivered.

Match the following: -Lidocaine

To calculate the milligrams of drug delivered, multiply the total number of cartridges by the total milligrams of drug in each cartridge.

A 140-pound patient received 144 mg of 2% lidocaine plain. How many more milligrams of the same drug can the patient receive without exceeding the MRD? Provide mathematical formulas required to calculate the correct answer.

Match the following: -Bupivacaine

A 2% solution of lidocaine contains ________ mg/ml.

Complete the missing information in the table below.

What is the MRD in cartridges for 4% prilocaine, 1:200,000 epinephrine for a healthy 150 pound patient?

Perspectives on Local Anesthesia for Dental Professionals

Fundamentals of Pain Management

The Neuroanatomy and Neurophysiology of Pain Control

Pharmacology Basics

Dental Local Anesthetic Drugs

Vasoconstrictors in Dentistry

Topical Anesthetics

Local Anesthetic Delivery Devices

Patient Assessment for Local Anesthesia

Fundamentals for Administration of Local Anesthetic Agents

Injections for Maxillary Pain Control

Injections for Palatal Pain Control

Injections for Mandibular Pain Control

Supplemental Techniques and Adjunctive Strategies

Troubleshooting Inadequate Anesthesia

Local Anesthesia Complications and Management

Insights for the Fearful Patient

Insights From Pedodontics

Insights From Specialties: Oral Surgery, Periodontics, and Endodontics

Fundamentals for the Administration of N2O-Oxygen Sedation

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