Local Anesthetics

20 Questions | By Drhermy | Updated: Nov 10, 2016 | Attempts: 367

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1.

Last fibers to lose function with use of local anesthesia
- A.
  
  Muscle spindles
- B.
  
  Pain fibers
- C.
  
  Motor fibers
Correct Answer
C. Motor fibers
2.

DOC for pediatric dental procedures
- A.
  
  Mepivcaine
- B.
  
  Lidocaine
- C.
  
  Procaine
Correct Answer
A. Mepivcaine
3.

This drug does not cause significant vasodilation
- A.
  
  Bupivacaine
- B.
  
  Tetracaine
- C.
  
  Mepivacaine
Correct Answer
C. Mepivacaine
4.

This drug is associated w/cardiotoxicity
- A.
  
  Ropivicaine
- B.
  
  Bupivacaine
- C.
  
  Cocaine
Correct Answer
B. Bupivacaine
5.

When a fixed ratio of Na+ channels are blocked at all times, minimizing the blockade of non-pain sensory modalities
- A.
  
  Tonic inhibition
- B.
  
  Feedback inhibition
- C.
  
  Phasic inhibition
Correct Answer
A. Tonic inhibition
6.

When the degree of inhibition increases w/rate of AP, maximizing selective inhibition of pain signal
- A.
  
  Tonic inhibition
- B.
  
  Feedback inhibition
- C.
  
  Phasic inhibition
Correct Answer
C. Phasic inhibition
7.

Tonic inhibition occurs in ... ; phasic inhibition occurs in..
- A.
  
  Inactive tissues; highly stimulated tissues
- B.
  
  Actively dividing tissues; highly stimulated tissues
- C.
  
  Highly stimulated tissues; actively dividing tissues
Correct Answer
A. Inactive tissues; highly stimulated tissues
8.

Allergic reaction may occur with this class of local anesthetic drugs..
- A.
  
  Aminoesters
- B.
  
  Aminoamides
- C.
  
  Adrenergic agonists
Correct Answer
A. Aminoesters
9.

This drug is popularly used in OB procedures..
- A.
  
  Lidocaine
- B.
  
  Levobuvicaine
- C.
  
  2-chlorprocaine
Correct Answer
C. 2-chlorprocaine
10.

If epinephrine is contraindicated, you could use..
- A.
  
  Tetracaine
- B.
  
  Prilocaine
- C.
  
  Ropivicaine
Correct Answer
B. Prilocaine
11.

This drug can be used for opthalmic anesthesia..
- A.
  
  Cocaine
- B.
  
  Tetracaine
- C.
  
  Lidocaine
Correct Answer
A. Cocaine
12.

EMLA consists of..
- A.
  
  Tetracaine + cocaine + epinephrine
- B.
  
  Lidocaine + prilocaine
- C.
  
  Ropivicaine + levobupivicaine
Correct Answer
B. Lidocaine + prilocaine
13.

An important metabolite of procaine is..
- A.
  
  PABA
- B.
  
  Methylmalonic acid
- C.
  
  NE
Correct Answer
A. PABA
14.

This property determines the efficacy of the local anesthetic agent..
- A.
  
  Extracellular pH and amino portion of the drug
- B.
  
  Hydrophobicity and aromatic ring portion of the drug
- C.
  
  Ester-amide bond between aromatic ring and amino portions of drug
Correct Answer
B. Hydrophobicity and aromatic ring portion of the drug
15.

This property determines the rate of onset & potency of the local anesthetic agent..
- A.
  
  Extracellular pH and amino portion of the drug
- B.
  
  Hydrophobicity and aromatic ring portion of the drug
- C.
  
  Ester-amide bond between aromatic ring and amino portions of drug
Correct Answer
A. Extracellular pH and amino portion of the drug
16.

This property determines the duration of action & side effects of the local anesthetic agent..
- A.
  
  Extracellular pH and amino portion of the drug
- B.
  
  Hydrophobicity and aromatic ring portion of the drug
- C.
  
  Ester-amide bond between aromatic ring and amino portions of drug
Correct Answer
C. Ester-amide bond between aromatic ring and amino portions of drug
17.

The primary use of procaine is..
- A.
  
  Infiltration anesthesia
- B.
  
  Spinal & topical anesthesia
- C.
  
  Dental procedures
Correct Answer
A. Infiltration anesthesia
18.

The primary use of tetracaine is..
- A.
  
  Infiltration anesthesia
- B.
  
  Spinal & topical anesthesia
- C.
  
  Dental procedures
Correct Answer
B. Spinal & topical anesthesia
19.

TAC is used prior to
- A.
  
  Suturing small cuts
- B.
  
  Performing surgery
- C.
  
  Giving birth
Correct Answer
A. Suturing small cuts
20.

TAC consists of..
- A.
  
  Tetracaine + cocaine + epinephrine
- B.
  
  Lidocaine + prilocaine
- C.
  
  Ropivicaine + levobupivicaine
Correct Answer
A. Tetracaine + cocaine + epinephrine

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Current Version
Nov 10, 2016

Quiz Edited by
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May 10, 2011

Quiz Created by
Drhermy

Local Anesthetics

Last fibers to lose function with use of local anesthesia

DOC for pediatric dental procedures

This drug does not cause significant vasodilation

This drug is associated w/cardiotoxicity

When a fixed ratio of Na+ channels are blocked at all times, minimizing the blockade of non-pain sensory modalities

When the degree of inhibition increases w/rate of AP, maximizing selective inhibition of pain signal

Tonic inhibition occurs in ... ; phasic inhibition occurs in..

Allergic reaction may occur with this class of local anesthetic drugs..

This drug is popularly used in OB procedures..

If epinephrine is contraindicated, you could use..

This drug can be used for opthalmic anesthesia..

EMLA consists of..

An important metabolite of procaine is..

This property determines the efficacy of the local anesthetic agent..

This property determines the rate of onset & potency of the local anesthetic agent..

This property determines the duration of action & side effects of the local anesthetic agent..

The primary use of procaine is..

The primary use of tetracaine is..

TAC is used prior to

TAC consists of..