Question 1

A patient has received four cartridges of 4% articaine, 1:200,000 epinephrine. How many milligrams of vasoconstrictor has the patient received?

Accepted Answer

A)  0.018 
B)  0.036 
C)  0.072 
D)  0.36 
A)  0.018 
B)  0.036 
C)  0.072 
D)  0.36 B

Question 2

A 180-pound patient has received three cartridges of 2% lidocaine, 1:100,000 epinephrine. How many additional milligrams of 4% articaine, 1:200,000 epinephrine can be administered before reaching the MRD?

Accepted Answer

A)  72 mg 
B)  192 mg 
C)  228 mg 
D)  392 mg 
A)  72 mg 
B)  192 mg 
C)  228 mg 
D)  392 mg D

Question 3

When two different drugs are injected, the total of the MRDs for both drugs is the maximum number of milligrams of drugs the patient may receive.

Accepted Answer

A) True 
 B)False  False

Question 4

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

Accepted Answer

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

Question 5

The MRD for bupivacaine is:

Accepted Answer

A)  200 mg 
B)  90 mg 
C)  300 mg 
D)  500 mg 
A)  200 mg 
B)  90 mg 
C)  300 mg 
D)  500 mg

Question 6

Using Clark's rule, a 12-year old, 90 pound child has received two cartridges of 2% lidocaine. How many more cartridges of lidocaine can this child receive before reaching MRD?

Accepted Answer

A)  3 
B)  6 
C)  7 
D)  8 
A)  3 
B)  6 
C)  7 
D)  8

Question 7

How many milligrams of epinephrine 1:200,000 are available in two cartridges?

Accepted Answer

A)  0.018 
B)  0.18 
C)  0.036 
D)  0.016 
A)  0.018 
B)  0.18 
C)  0.036 
D)  0.016

Question 8

Which of the following information for MRD is not correct?

Accepted Answer

A)  Bupivacaine = 90 mg 
B)  Lidocaine = 500 mg 
C)  Mepivacaine = 300 mg 
D)  Prilocaine = 600 mg 
A)  Bupivacaine = 90 mg 
B)  Lidocaine = 500 mg 
C)  Mepivacaine = 300 mg 
D)  Prilocaine = 600 mg

Question 9

Match the following:
-Prilocaine

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 10

A healthy 160-pound patient has received three cartridges of 2% lidocaine, 1:50,000 epinephrine during an oral surgical procedure. How many more cartridges with the same drug could this patient receive before reaching the MRD?

Accepted Answer

A)  2 
B)  5 
C)  8 
D)  10 
A)  2 
B)  5 
C)  8 
D)  10

Question 11

A 120-pound patient has received three cartridges of 4% prilocaine, 1:200:000 epinephrine. How many more milligrams of prilocaine can this patient receive before reaching the MRD?

Accepted Answer

A)  72 mg 
B)  216 mg 
C)  432 mg 
D)  600 mg 
A)  72 mg 
B)  216 mg 
C)  432 mg 
D)  600 mg

Question 12

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

Accepted Answer

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

Question 13

How many milligrams of epinephrine 1:50,000 are available in one cartridge?

Accepted Answer

A)  0.018 mg 
B)  0.050 mg 
C)  0.036 mg 
D)  0.2 mg 
A)  0.018 mg 
B)  0.050 mg 
C)  0.036 mg 
D)  0.2 mg

Question 14

What factors are needed to calculate the local anesthetic drug dose delivered for a given patient?

Accepted Answer

The following factors are need

Question 15

Clark's rule for determining pediatric drug doses is based on a child's weight divided by 150 to get the approximate fraction of the adult dose.

Accepted Answer

A) True 
 B)False

Question 16

In solutions containing both a local anesthetic and a vasoconstrictor drug, the maximum recommended dose of the local anesthetic is usually the limiting drug.

Accepted Answer

A) True 
 B)False

Question 17

Match the following:
-Cartridge volume

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

The maximum safe dose of 1:50,000 epinephrine per appointment for a healthy adult is 0.2 mg or 5.5 cartridges.

Accepted Answer

A) True 
 B)False

Question 19

Match the following:
-Mepivacaine

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 20

Match the following:
-Young's rule

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

Exam 7: Dose Calculations for Local Anesthetic Solutions

A patient has received four cartridges of 4% articaine, 1:200,000 epinephrine. How many milligrams of vasoconstrictor has the patient received?

A 180-pound patient has received three cartridges of 2% lidocaine, 1:100,000 epinephrine. How many additional milligrams of 4% articaine, 1:200,000 epinephrine can be administered before reaching the MRD?

When two different drugs are injected, the total of the MRDs for both drugs is the maximum number of milligrams of drugs the patient may receive.

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

The MRD for bupivacaine is:

Using Clark's rule, a 12-year old, 90 pound child has received two cartridges of 2% lidocaine. How many more cartridges of lidocaine can this child receive before reaching MRD?

How many milligrams of epinephrine 1:200,000 are available in two cartridges?

Which of the following information for MRD is not correct?

Match the following: -Prilocaine

A healthy 160-pound patient has received three cartridges of 2% lidocaine, 1:50,000 epinephrine during an oral surgical procedure. How many more cartridges with the same drug could this patient receive before reaching the MRD?

A 120-pound patient has received three cartridges of 4% prilocaine, 1:200:000 epinephrine. How many more milligrams of prilocaine can this patient receive before reaching the MRD?

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

How many milligrams of epinephrine 1:50,000 are available in one cartridge?

What factors are needed to calculate the local anesthetic drug dose delivered for a given patient?

Clark's rule for determining pediatric drug doses is based on a child's weight divided by 150 to get the approximate fraction of the adult dose.

In solutions containing both a local anesthetic and a vasoconstrictor drug, the maximum recommended dose of the local anesthetic is usually the limiting drug.

Match the following: -Cartridge volume

The maximum safe dose of 1:50,000 epinephrine per appointment for a healthy adult is 0.2 mg or 5.5 cartridges.

Match the following: -Mepivacaine

Match the following: -Young's rule

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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