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Thread: MCQs: Local Anesthetics

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    trimurtulu is offline MedicalGeek Resident
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    Arrow MCQs: Local Anesthetics

    MCQs: Local Anesthetics


    Question # 1 (Multiple Choice) Duration of action -- subarachnoid injection of ester-type local anesthetics

    A) extremely short
    B) extremely long

    Question # 2 (Multiple Choice) Consequences of vasodilatory local anesthetic property:

    A) reduced systemic absorption
    B) shorter duration of action
    C) both
    D) neither

    Question # 3 (Multiple Choice) Highest local anesthetic blood levels associated with this type of regional anesthesia:

    A) epidural
    B) brachial plexus
    C) sciatic
    D) intercostal
    E) caudal

    Question # 4 (Multiple Choice) Consequences of fetal acidosis (sometimes associated with prolonged labor) on local anesthetic accumulation in the fetus

    A) reduced
    B) enhanced

    Question # 5 (Multiple Choice) Plasma concentration of local anesthetics determined by:

    A) rate of tissue distribution
    B) rate of drug clearance
    C) both
    D) neither

    Question # 6 (Multiple Choice) Ester-type local anesthetic-most rapid hydrolysis

    A) tetracaine (pontocaine)
    B) procaine (Novocain)
    C) chloroprocaine (Nesacaine)

    Question # 7 (Multiple Choice) Enhancement of spinal anesthesia by the presence of epinephrine in local anesthetics: Reason(s) --

    A) increased substance P release
    B) increased dorsal horn neuronal activity
    C) decreased local neuronal uptake
    D) none of the above

    Question # 8 (Multiple Choice) Ester type local anesthetics are more likely available for significant placental transfer

    A) true
    B) false

    Question # 9 (Multiple Answer) Propranolol (Inderal) -- local anesthetic effect(s):

    A) inhibits bupivacaine (Marcaine) extraction
    B) increases lidocaine (Xylocaine) plasma clearance
    C) decreases bupivacaine (Marcaine) plasma clearance

    Question # 10 (Multiple Choice) Duration of action

    A) Ester-type local anesthetics -- longer duration of action compared to amides
    B) Amide-type local anesthetics -- longer duration of action compared to esters

    Question # 11 (Multiple Answer) Factor(s) that may reduce plasma cholinesterase activity:

    A) hepatic disease
    B) elevated BUN
    C) parturient patient

    Question # 12 (Multiple Choice) Systemic toxicity: ester-type local anesthetics

    A) inversely proportional to hydrolytic rate
    B) directly proportional the hydrolytic rate

    Question # 13 (Multiple Answer) Chemical properties -- local anesthetics

    A) weak bases
    B) may exist as a cation
    C) may exist in uncharged form
    D) most local anesthetics have pKa's ranging from 6.0-7.0

    Question # 14 (Multiple Answer) Local anesthetics: chemical properties

    A) many local anesthetics are chiral
    B) S enantiomers are often less toxic than racemates
    C) ropivacaine (Naropin) is an example of a pure R enantiomer
    D) all of the above

    Question # 15 (Multiple Choice) Higher vascularity -- promotes increased, rapid local anesthetic absorption

    A) tendon
    B) tracheal mucosal

    Question # 16 (Multiple Choice) Consequence of clonidine (Catapres) addition to local anesthetic solutions --

    A) increase local anesthetic effect
    B) reduce local anesthetic effect

    Question # 17 (Multiple Choice) Clearance mechanisms for local anesthetics:

    A) amides-mainly renal
    B) esters-rapid clearance; hydrolysis
    C) both
    D) neither

    Question # 18 (Multiple Choice) Local infection (acidotic conditions) --effect on anesthetic effectiveness

    A) increased effectiveness
    B) reduced effectiveness

    Question # 19 (Multiple Answer) Factors that influence local anesthetic absorption and distribution:

    A) dosage
    B) presence of epinephrine in the local anesthetic solution
    C) injection site
    D) chemical properties of the drug

    Question # 20 (Multiple Answer) Factors influencing local anesthetic distribution and plasma concentrations:

    A) liver function
    B) cardiovascular status
    C) extent of protein binding
    D) patient age

    Question # 21 (Multiple Choice) Ester-type local anesthetic:

    A) lidocaine (Xylocaine)
    B) tetracaine (pontocaine)
    C) ropivacaine (Naropin)
    D) dibucaine (Nupercainal, generic)
    E) bupivacaine (Marcaine)

    Question # 22 (Multiple Choice) Pulmonary extraction from the venous circulation limits the amount of local anesthetic that will reach the systemic circulation

    A) true
    B) false

    Question # 23 (Multiple Answer) Amide-type local anesthetic

    A) cocaine
    B) tetracaine (pontocaine)
    C) prilocaine (Citanest)
    D) lidocaine (Xylocaine)
    E) bupivacaine (Marcaine)


    --------------------------------------------------------------------------


    Correct Answers


    [HIDE]
    Question # 1
    (Multiple Choice) Duration of action -- subarachnoid injection of ester-type local anesthetics

    Answer: (B) extremely long

    CSF-no cholinesterase activity BACK



    Question # 2 (Multiple Choice) Consequences of vasodilatory local anesthetic property:

    Answer: (B) shorter duration of action


    Question # 3
    (Multiple Choice) Highest local anesthetic blood levels associated with this type of regional anesthesia:

    Answer: (D) intercostal


    Question # 4 (Multiple Choice) Consequences of fetal acidosis (sometimes associated with prolonged labor) on local anesthetic accumulation in the fetus

    Answer: (B) enhanced

    ion trapping


    Question # 5 (Multiple Choice) Plasma concentration of local anesthetics determined by:

    Answer: (C) both



    Question # 6 (Multiple Choice) Ester-type local anesthetic-most rapid hydrolysis

    Answer: (C) chloroprocaine (Nesacaine)




    Question # 7 (Multiple Choice) Enhancement of spinal anesthesia by the presence of epinephrine in local anesthetics: Reason(s) --

    Answer: (D) none of the above




    Question # 8 (Multiple Choice) Ester type local anesthetics are more likely available for significant placental transfer

    Answer: (B) false


    Question # 9
    (Multiple Answer) Propranolol (Inderal) -- local anesthetic effect(s):

    (A) inhibits bupivacaine (Marcaine) extraction


    (C) decreases bupivacaine (Marcaine) plasma clearance



    Question # 10 (Multiple Choice) Duration of action

    Answer: (B) Amide-type local anesthetics -- longer duration of action compared to esters



    Question # 11 (Multiple Answer) Factor(s) that may reduce plasma cholinesterase activity:

    (A) hepatic disease


    (B) elevated BUN


    (C) parturient patient



    Question # 12 (Multiple Choice) Systemic toxicity: ester-type local anesthetics

    Answer: (A) inversely proportional to hydrolytic rate



    Question # 13 (Multiple Answer) Chemical properties -- local anesthetics


    (A) weak bases


    (B) may exist as a cation


    (C) may exist in uncharged form


    (D) most local anesthetics have pKa's ranging from 6.0-7.0



    Question # 14 (Multiple Answer) Local anesthetics: chemical properties

    (A) many local anesthetics are chiral


    (B) S enantiomers are often less toxic than racemates



    Question # 15
    (Multiple Choice) Higher vascularity -- promotes increased, rapid local anesthetic absorption

    Answer: (B) tracheal mucosal



    Question # 16 (Multiple Choice) Consequence of clonidine (Catapres) addition to local anesthetic solutions --

    Answer: (A) increase local anesthetic effect



    Question # 17 (Multiple Choice) Clearance mechanisms for local anesthetics:

    Answer: (B) esters-rapid clearance; hydrolysis

    amides-hepatic


    Question # 18 (Multiple Choice) Local infection (acidotic conditions) --effect on anesthetic effectiveness

    Answer: (B) reduced effectiveness


    Question # 19 (Multiple Answer) Factors that influence local anesthetic absorption and distribution:

    (A) dosage


    (B) presence of epinephrine in the local anesthetic solution


    (C) injection site


    (D) chemical properties of the drug




    Question # 20 (Multiple Answer) Factors influencing local anesthetic distribution and plasma concentrations:

    (A) liver function


    (B) cardiovascular status


    (C) extent of protein binding


    (D) patient age



    Question # 21 (Multiple Choice) Ester-type local anesthetic:

    Answer: (B) tetracaine (pontocaine)



    Question # 22 (Multiple Choice) Pulmonary extraction from the venous circulation limits the amount of local anesthetic that will reach the systemic circulation

    Answer: (A) true


    Question # 23 (Multiple Answer) Amide-type local anesthetic

    (D) lidocaine (Xylocaine)


    (E) bupivacaine (Marcaine)[/HIDE]

  2. #2
    trimurtulu is offline MedicalGeek Resident
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    Local Anesthetics



    Question # 1 (Multiple Answer) Advantage(s) of 5% lidocaine (Xylocaine)-prilocaine (Citanest) cream (eutectic mixture)

    A) no local irritation
    B) even absorption
    C) no systemic toxicity
    D) higher melting point of combined drug than either lidocaine (Xylocaine) or prilocaine (Citanest) alone

    Question # 2 (Multiple Choice) Local anesthetic used in greater than 50% of rhinolaryngologic cases:

    A) prilocaine (Citanest)
    B) cocaine
    C) mepivacaine (Carbocaine)
    D) bupivacaine (Marcaine)
    E) tetracaine (pontocaine)

    Question # 3 (Multiple Choice) Mechanism(s) of local anesthetic action in epidural anesthesia:

    A) direct local anesthetic action on nerve roots and spinal cord following local anesthetic diffusion across the dura
    B) diffusion of local anesthetic into paravertebral regions through the intervertebral foramina
    C) both
    D) neither

    Question # 4 (Multiple Answer) Rationale for adding epinephrine to a local anesthetic solution:

    A) reduced local anesthetic systemic absorption
    B) increased anesthetic concentration near nerve fibers
    C) reduced duration of conduction blockade
    D) all of the above

    Question # 5 (Multiple Choice) Zone of differential motor blockade may average up to four segments below the sensory level

    A) epidural
    B) spinal

    Question # 6 (Multiple Choice) Duration of sensory anesthesia is likely to be extended for abdominal regional anesthesia

    A) true
    B) false

    Question # 7 (Multiple Choice) Primary side effect/toxicities associated with local anesthetic use:

    A) allergic reactions
    B) systemic toxicity
    C) both
    D) neither

    Question # 8 (Multiple Answer) Factors enhancing bupivacaine (Marcaine) toxicity

    A) pregnancy
    B) presence of calcium channel blockers
    C) arterial hypoxemia
    D) acidosis
    E) hypercarbia

    Question # 9 (Multiple Answer) Agents added to local anesthetics that prolonged local anesthetic duration of action

    A) epinephrine
    B) phenylephrine (Neo-Synephrine)
    C) dextran

    Question # 10 (Multiple Choice) typically a zone of differential sympathetic nervous system blockade

    A) epidural
    B) spinal

    Question # 11 (Multiple Answer) Preferred local anesthetics for local infiltration:

    A) lidocaine (Xylocaine)
    B) ropivacaine (Naropin)
    C) bupivacaine (Marcaine)

    Question # 12 (Multiple Choice) Neurotoxicity associate with local anesthesia: sensory anesthesia, bowell & bladder sphincter dysfunction, paraplegia -- may because by nonhomogeneous local anesthetic distribution

    A) anterior spinal artery syndrome
    B) cauda equina syndrome
    C) transient radicular irritation

    Question # 13 (Multiple Choice) Neurotoxicity -- moderate/severe lower back, buttocks, posterior side pain

    A) cauda equina syndrome
    B) transient radicular irritation
    C) anterior spinal artery syndrome

    Question # 14 (Multiple Answer) Factors that influence lidocaine (Xylocaine) metabolism:

    A) pregnancy-induced hypertension
    B) hepatic disease
    C) reduced liver blood flow
    D) volatile anesthetics

    Question # 15 (Multiple Choice) Most common cause of toxic plasma local anesthetic concentrations

    A) incorrect dosage
    B) accidental direct intravascular injection during peripheral or block or epidural anesthesia

    Question # 16 (Multiple Choice) Common eutectic mixture of local anesthetics (EMLA)

    A) tetracaine (pontocaine) and epinephrine
    B) lidocaine (Xylocaine) and tetracaine (pontocaine)
    C) prilocaine (Citanest) and bupivacaine (Marcaine)
    D) tetracaine (pontocaine) and bupivacaine (Marcaine)
    E) lidocaine (Xylocaine) and prilocaine (Citanest)

    Question # 17 (Multiple Choice) Most frequent local anesthetic clinical use:

    A) treatment of grand mal seizure
    B) analgesia
    C) management of cardiac arrhythmias
    D) regional anesthetia
    E) management of increased intracranial pressure

    Question # 18 (Multiple Choice) Lidocaine (Xylocaine) effect on ventilation response to hypoxia

    A) enhanced response
    B) depressed response
    C) no effect

    Question # 19 (Multiple Answer) Clinical use(s) of EMLA applications:

    A) arterial cannulation
    B) venipuncture
    C) myringotomy
    D) lumbar puncture

    Question # 20 (Multiple Answer) Allergic reactions to local anesthetics:

    A) common > 10% of adverse reactions due to allergic mechanisms
    B) high-risk with ester-type agents which are metabolized to p-aminobenzoic acid-related compounds
    C) cross-sensitivity between esters and amide-type local anesthetics are common
    D) intradermal testing for possible allergy to local anesthetics should use preservative-free drug

    Question # 21 (Multiple Answer) Factors which increase local anesthetic CNS toxicities:

    A) hypokalemia
    B) rate of injection
    C) patient receiving mexiletine (Mexitil) when lidocaine (Xylocaine) is used
    D) high PaCO2 (reduced local anesthetic seizure threshold)

    Question # 22 (Multiple Choice) Least likely to exhibit cross-sensitivity with amide or ester local anesthetics.

    A) lidocaine (Xylocaine)
    B) tetracaine (pontocaine)
    C) mepivacaine (Carbocaine)
    D) bupivacaine (Marcaine)
    E) dyclonine (Dyclone)

    Question # 23 (Multiple Answer) Factor(s) that reduce lidocaine (Xylocaine) seizure threshold.

    A) hypoxemia
    B) hyperkalemia
    C) acidosis

    Question # 24 (Multiple Choice) Local anesthetic which produces localized vasoconstriction and anesthesia

    A) tetracaine (pontocaine)
    B) lidocaine (Xylocaine)
    C) cocaine
    D) prilocaine (Citanest)
    E) chloroprocaine (Nesacaine)

    Question # 25 (Multiple Choice) Agents not recommended for Bier block:

    A) chloroprocaine (Nesacaine)
    B) mepivacaine (Carbocaine)
    C) bupivacaine (Marcaine)
    D) all the above

    Question # 26 (Multiple Answer) Manifestation of systemic toxicity

    A) CNS toxicity
    B) cardiovascular toxicity
    C) neurological symptoms

    Question # 27 (Multiple Choice) Most commonly used local anesthetic for rhinolaryngologic cases

    A) ropivacaine (Naropin)
    B) bupivacaine (Marcaine)
    C) mepivacaine (Carbocaine)
    D) cocaine
    E) tetracaine (pontocaine)

    Question # 28 (Multiple Answer) Commonly use local anesthetics for topical/surface application:

    A) chloroprocaine (Nesacaine)
    B) lidocaine (Xylocaine)
    C) tetracaine (pontocaine)
    D) cocaine
    E) procaine (Novocain)

    Question # 29 (Multiple Answer) Clinical presentations suggestive of local anesthetic allergies:

    A) rash
    B) laryngeal edema
    C) bronchospasm
    D) urticaria
    E) possibly hypotension

    Question # 30 (Multiple Choice) Local anesthetic most likely to cause cyanosis secondary to reduced oxygen transport:

    A) lidocaine (Xylocaine)
    B) bupivacaine (Marcaine)
    C) dibucaine (Nupercainal, generic)
    D) prilocaine (Citanest)
    E) procaine (Novocain)

    Question # 31 (Multiple Choice) This amide-type local anesthetic is used to assess the possible presence of atypical cholinesterase

    A) ropivacaine (Naropin)
    B) bupivacaine (Marcaine)
    C) dibucaine (Nupercainal, generic)
    D) procaine (Novocain)
    E) chloroprocaine (Nesacaine)

    Question # 32 (Multiple Choice) Toxicities associated with systemic epinephrine absorption following local anesthetic use with epinephrine included in the local anesthetic solution

    A) hypertension
    B) arrhythmias
    C) both
    D) neither

    Question # 33 (Multiple Choice) ropivacaine (Naropin):less cardiotoxic then bupivacaine (Marcaine)

    A) true
    B) false

    Question # 34 (Multiple Answer) Factor(s) which determine extent of systemic local anesthetic absorption:

    A) initial dose
    B) injection site vascularity
    C) intrinsic drug properties
    D) whether or not epinephrine was used to provide local vasoconstriction

    Question # 35 (Multiple Answer) Lidocaine (Xylocaine) cardiotoxicity -- electrophysiological characteristics

    A) ECG -PR interval prolongation
    B) increased conduction velocity
    C) reduced phase 4 depolarization
    D) reduced automaticity

    Question # 36 (Multiple Choice) Local anesthetic lipophilicity and effectiveness of epinephrine on local anesthesia:

    A) more lipophilic anesthetics benefit most by epinephrine in addition to local anesthetic solutions
    B) more lipophilic anesthetics benef ileast by epinephrine in addition to local anesthetic solutions

    Question # 37 (Multiple Choice) Neurotoxicity following local anesthesia: lower extremity paresis-- predisposing conditions may include advanced age and peripheral vascular disease

    A) transient radicular irritation
    B) cauda equina syndrome
    C) anterior spinal artery syndrome

    Question # 38 (Multiple Choice) Local anesthetic not recommended for peripheral nerve blockade:

    A) lidocaine (Xylocaine)
    B) bupivacaine (Marcaine)
    C) ropivacaine (Naropin)
    D) tetracaine (pontocaine)

    Question # 39 (Multiple Answer) Frequently used amide-type local anesthetic for Bier block

    A) chloroprocaine (Nesacaine)
    B) prilocaine (Citanest)
    C) bupivacaine (Marcaine)
    D) ropivacaine (Naropin)


    --------------------------------------------------------------------------


    Correct Answers


    [HIDE]

    Question # 1 (Multiple Answer) Advantage(s) of 5% lidocaine (Xylocaine)-prilocaine (Citanest) cream (eutectic mixture)

    (A) no local irritation


    (B) even absorption


    (C) no systemic toxicity



    Question # 2 (Multiple Choice) Local anesthetic used in greater than 50% of rhinolaryngologic cases:

    Answer: (B) cocaine



    Question # 3
    (Multiple Choice) Mechanism(s) of local anesthetic action in epidural anesthesia:

    Answer: (C) both



    Question # 4 (Multiple Answer) Rationale for adding epinephrine to a local anesthetic solution:

    (A) reduced local anesthetic systemic absorption


    (B) increased anesthetic concentration near nerve fibers



    Question # 5 (Multiple Choice) Zone of differential motor blockade may average up to four segments below the sensory level

    Answer: (A) epidural



    Question # 6 (Multiple Choice) Duration of sensory anesthesia is likely to be extended for abdominal regional anesthesia

    Answer: (B) false


    Question # 7 (Multiple Choice) Primary side effect/toxicities associated with local anesthetic use:

    Answer: (C) both


    Question # 8 (Multiple Answer) Factors enhancing bupivacaine (Marcaine) toxicity

    (A) pregnancy


    (B) presence of calcium channel blockers


    (C) arterial hypoxemia


    (D) acidosis


    (E) hypercarbia


    Question # 9 (Multiple Answer) Agents added to local anesthetics that prolonged local anesthetic duration of action

    (A) epinephrine


    (B) phenylephrine (Neo-Synephrine)


    (C) dextran




    Question # 10 (Multiple Choice) typically a zone of differential sympathetic nervous system blockade

    Answer: (B) spinal



    Question # 11 (Multiple Answer) Preferred local anesthetics for local infiltration:

    (A) lidocaine (Xylocaine)


    (B) ropivacaine (Naropin)


    (C) bupivacaine (Marcaine)



    Question # 12 (Multiple Choice) Neurotoxicity associate with local anesthesia: sensory anesthesia, bowell & bladder sphincter dysfunction, paraplegia -- may because by nonhomogeneous local anesthetic distribution

    Answer: (B) cauda equina syndrome



    Question # 13 (Multiple Choice) Neurotoxicity -- moderate/severe lower back, buttocks, posterior side pain

    Answer: (B) transient radicular irritation



    Question # 14 (Multiple Answer) Factors that influence lidocaine (Xylocaine) metabolism:

    (A) pregnancy-induced hypertension


    (B) hepatic disease


    (C) reduced liver blood flow


    (D) volatile anesthetics


    Question # 15 (Multiple Choice) Most common cause of toxic plasma local anesthetic concentrations

    Answer: (B) accidental direct intravascular injection during peripheral or block or epidural anesthesia


    Question # 16 (Multiple Choice) Common eutectic mixture of local anesthetics (EMLA)

    Answer: (E) lidocaine (Xylocaine) and prilocaine (Citanest)


    Question # 17 (Multiple Choice) Most frequent local anesthetic clinical use:

    Answer: (D) regional anesthetia



    Question # 18 (Multiple Choice) Lidocaine (Xylocaine) effect on ventilation response to hypoxia

    Answer: (B) depressed response



    Question # 19 (Multiple Answer) Clinical use(s) of EMLA applications:

    (A) arterial cannulation


    (B) venipuncture


    (C) myringotomy


    (D) lumbar puncture



    Question # 20 (Multiple Answer) Allergic reactions to local anesthetics:

    (B) high-risk with ester-type agents which are metabolized to p-aminobenzoic acid-related compounds


    (D) intradermal testing for possible allergy to local anesthetics should use preservative-free drug


    Question # 21 (Multiple Answer) Factors which increase local anesthetic CNS toxicities:

    (B) rate of injection


    (C) patient receiving mexiletine (Mexitil) when lidocaine (Xylocaine) is used


    (D) high PaCO2 (reduced local anesthetic seizure threshold)



    Question # 22 (Multiple Choice) Least likely to exhibit cross-sensitivity with amide or ester local anesthetics.

    Answer: (E) dyclonine (Dyclone)

    dyclonine (Dyclone) -- ketone structure



    Question # 23 (Multiple Answer) Factor(s) that reduce lidocaine (Xylocaine) seizure threshold.

    (A) hypoxemia


    (B) hyperkalemia


    (C) acidosis



    Question # 24 (Multiple Choice) Local anesthetic which produces localized vasoconstriction and anesthesia

    Answer: (C) cocaine




    Question # 25 (Multiple Choice) Agents not recommended for Bier block:

    Answer: (D) all the above



    Question # 26 (Multiple Answer) Manifestation of systemic toxicity

    (A) CNS toxicity


    (B) cardiovascular toxicity


    (C) neurological symptoms



    Question # 27 (Multiple Choice) Most commonly used local anesthetic for rhinolaryngologic cases

    Answer: (D) cocaine



    Question # 28 (Multiple Answer) Commonly use local anesthetics for topical/surface application:

    (B) lidocaine (Xylocaine)


    (C) tetracaine (pontocaine)


    (D) cocaine


    Question # 29 (Multiple Answer) Clinical presentations suggestive of local anesthetic allergies:

    (A) rash


    (B) laryngeal edema


    (C) bronchospasm


    (D) urticaria


    (E) possibly hypotension


    Question # 30 (Multiple Choice) Local anesthetic most likely to cause cyanosis secondary to reduced oxygen transport:

    Answer: (D) prilocaine (Citanest)



    Question # 31 (Multiple Choice) This amide-type local anesthetic is used to assess the possible presence of atypical cholinesterase

    Answer: (C) dibucaine (Nupercainal, generic)



    Question # 32 (Multiple Choice) Toxicities associated with systemic epinephrine absorption following local anesthetic use with epinephrine included in the local anesthetic solution

    Answer: (C) both


    Question # 33 (Multiple Choice) ropivacaine (Naropin):less cardiotoxic then bupivacaine (Marcaine)

    Answer: (A) true

    pure S-enantiomer


    Question # 34 (Multiple Answer) Factor(s) which determine extent of systemic local anesthetic absorption:

    (A) initial dose


    (B) injection site vascularity


    (C) intrinsic drug properties


    (D) whether or not epinephrine was used to provide local vasoconstriction



    Question # 35 (Multiple Answer) Lidocaine (Xylocaine) cardiotoxicity -- electrophysiological characteristics

    (A) ECG -PR interval prolongation


    (C) reduced phase 4 depolarization


    (D) reduced automaticity



    Question # 36 (Multiple Choice) Local anesthetic lipophilicity and effectiveness of epinephrine on local anesthesia:

    Answer: (B) more lipophilic anesthetics benef ileast by epinephrine in addition to local anesthetic solutions


    Question # 37 (Multiple Choice) Neurotoxicity following local anesthesia: lower extremity paresis-- predisposing conditions may include advanced age and peripheral vascular disease

    Answer: (C) anterior spinal artery syndrome



    Question # 38 (Multiple Choice) Local anesthetic not recommended for peripheral nerve blockade:

    Answer: (D) tetracaine (pontocaine)

    slow onset/systemic toxicity



    Question # 39 (Multiple Answer) Frequently used amide-type local anesthetic for Bier block

    (B) prilocaine (Citanest)
    [/HIDE]

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    nandhinilp is offline MedicalGeek Verified
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    thanks for postin these mcqs

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