Local Anesthetics

20 Questions | Total Attempts: 317

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Local Anesthetics

Clinical Neuro 3


Questions and Answers
  • 1. 
    Last fibers to lose function with use of local anesthesia
    • A. 

      Muscle spindles

    • B. 

      Pain fibers

    • C. 

      Motor fibers

  • 2. 
    DOC for pediatric dental procedures
    • A. 

      Mepivcaine

    • B. 

      Lidocaine

    • C. 

      Procaine

  • 3. 
    This drug does not cause significant vasodilation
    • A. 

      Bupivacaine

    • B. 

      Tetracaine

    • C. 

      Mepivacaine

  • 4. 
    This drug is associated w/cardiotoxicity
    • A. 

      Ropivicaine

    • B. 

      Bupivacaine

    • C. 

      Cocaine

  • 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

  • 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

  • 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

  • 8. 
    Allergic reaction may occur with this class of local anesthetic drugs..
    • A. 

      Aminoesters

    • B. 

      Aminoamides

    • C. 

      Adrenergic agonists

  • 9. 
    This drug is popularly used in OB procedures..
    • A. 

      Lidocaine

    • B. 

      Levobuvicaine

    • C. 

      2-chlorprocaine

  • 10. 
    If epinephrine is contraindicated, you could use..
    • A. 

      Tetracaine

    • B. 

      Prilocaine

    • C. 

      Ropivicaine

  • 11. 
    This drug can be used for opthalmic anesthesia..
    • A. 

      Cocaine

    • B. 

      Tetracaine

    • C. 

      Lidocaine

  • 12. 
    EMLA consists of..
    • A. 

      Tetracaine + cocaine + epinephrine

    • B. 

      Lidocaine + prilocaine

    • C. 

      Ropivicaine + levobupivicaine

  • 13. 
    An important metabolite of procaine is..
    • A. 

      PABA

    • B. 

      Methylmalonic acid

    • C. 

      NE

  • 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

  • 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

  • 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

  • 17. 
    The primary use of procaine is..
    • A. 

      Infiltration anesthesia

    • B. 

      Spinal & topical anesthesia

    • C. 

      Dental procedures

  • 18. 
    The primary use of tetracaine is..
    • A. 

      Infiltration anesthesia

    • B. 

      Spinal & topical anesthesia

    • C. 

      Dental procedures

  • 19. 
    TAC is used prior to
    • A. 

      Suturing small cuts

    • B. 

      Performing surgery

    • C. 

      Giving birth

  • 20. 
    TAC consists of..
    • A. 

      Tetracaine + cocaine + epinephrine

    • B. 

      Lidocaine + prilocaine

    • C. 

      Ropivicaine + levobupivicaine