Local and General Anesthetics Most Important MCQs

1 - A dentist who first used ether as a general antithetic was_____________?

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A. Martin

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B. Morton

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C. Morrison

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D. Murray

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Morton

2 - A patient, without prior medication, breathes a gas mixture consisting of 50 percent nitrous oxide and 50 percent oxygen by volume. Which of the following effects would be expected_____________?

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A. Analgesia

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B. Excitation

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C. Surgical anesthesia

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D. Respiratory arrest

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Analgesia

3 - About articaine, all are true except_____________?

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A. Plasma half-life is 90 min

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B. Is amide which is metabolized in liver

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C. Mandibular infiltration is more effective than nerve block in mandibular molar teeth

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D. More breaks down causes more toxicity

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Plasma half-life is 90 min

4 - After I.V administration of which of the following anesthetic agent, there is rapid recovery and less headedness ?

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A. Propofol

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B. Diazepam

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C. Droperidol

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D. Midazolam

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Propofol

5 - All of the following are inhalational anesthetic agents except_____________?

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A. Halothane

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B. Ketamine

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C. Enflurane

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D. Isoflurane

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Ketamine

6 - All of the following are vasodilators except______________?

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A. Cocaine

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B. Etomidate

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C. Cyclopropane

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D. Procaine

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Cocaine

7 - All of the following causes increase in heart rate except________________?

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A. Halothane

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B. Isoflurane

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C. Sevoflurane

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D. Desflurane

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Halothane

8 - Cardiac arrhythmias are most commonly seen during administration of____________?

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A. Thiopental

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B. Halothane

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C. Ethyl Ether

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D. Nitrous oxide

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Halothane

9 - Centrineuraxial (spinaland epidural) anaesthesia is not contraindicated in____________?

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A. Platalets <80,000

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B. Patient on aspirin

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C. Patient on oral anticoagulants

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D. Raised intracranial pressure

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Patient on aspirin

10 - Chloroxylenol has_______________?

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A. Local anesthetic property

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B. Local anesthetic and antiseptic action

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C. Antiseptic action

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D. Antibiotic action

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Antiseptic action

11 - Dissociative Sedation and analgesia described by Robert and Rosebaum in 1971 is____________?

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A. 5 to 20% N20

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B. 20 to 30% N20

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C. 30 to 50% N20

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D. 50 to 70% N20

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50 to 70% N20

12 - General anaesthetic most likely to cause bronchodilation is_____________?

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A. Thiopentone

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B. Ketamine

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C. Propofol

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D. Fentanyl

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Ketamine

13 - Hallucinations are seen after ________ anesthesia?

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A. Ketamine

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B. Thiopentone

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C. Tentanyl

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D. Nitrous oxide

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Ketamine

14 - In the second stage of anesthesia the pupil is_______________?

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A. Constricted

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B. Partially dilated

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C. Normal in size

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D. Totally dilated

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Partially dilated

15 - In which of the following stage general anesthesia surgery is done_______________?

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A. Stage I

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B. Stage II

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C. Stage III plane 2

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D. Stage III plane 3

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Stage III plane 3

16 - Ketamine is a________________?

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A. Short general anesthetic agent

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B. Local anesthetic agent

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C. Antidepressive agent

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D. Hypnotic agent

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Short general anesthetic agent

17 - Lidocaine produces its antiarrhythmic effects by_____________?

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A. Increasing A-V conduction

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B. Decreasing cardiac excitability

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C. Increasing cardiac conduction velocity

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D. Increasing spontaneous pacemaker activity

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Decreasing cardiac excitability

18 - Local anaesthetics act by inhibiting_____________?

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A. Motor fibers only

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B. Motor and sensory fibres

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C. Only sensory fibres

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D. None of the above

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Only sensory fibres

19 - Methemoglobinemia is a complication following the administration of_____________?

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A. Lignocaine

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B. Benzacaine

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C. Prilocaine

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D. Procaine

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Prilocaine

20 - Naturally occurring local anaesthetic________________?

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A. Cocaine

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B. Procaine

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C. Lignocaine

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D. None of the above

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Cocaine

21 - Nitrous oxide is carried in the blood stream by_____________?

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A. Haemoglobin

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B. White blood cells

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C. Red Blood cells

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D. Serum

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Red Blood cells

22 - Nitrous oxide is______________?

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A. A good analgesic but a poor anesthetic

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B. A good anesthetic but a poor analgesic

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C. A good analgesic and a good anesthetic

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D. A poor analgesic and a poor anesthetic

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A good analgesic but a poor anesthetic

23 - Problems associated with nitrous oxide anaesthesia is_____________?

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A. Behavioral problem

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B. Sensitizes the heart to adrenaline

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C. Prolonged difficult induction

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D. Tachycardia and or arrhythmias

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Behavioral problem

24 - Rapid onset of inhalational GA depends on____________?

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A. Blood solubility

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B. Cerebral blood flow

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C. Partial pressure of GA

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D. All of the above

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All of the above

25 - Relative contraindications for the administration of Ketamine hydrochioride include all of the following EXCEPT ?

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A. Age < 5 years

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B. History of epilepsy

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C. Raised intracranial tension

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D. Recent anterior myocardial infarction

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Recent anterior myocardial infarction

26 - Side of action of muscle selanant is______________?

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A. Myoneural junction

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B. Central

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C. Ascending reticular

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D. Red nucleus activating system

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Myoneural junction

27 - The dentist who first used Nitrous oxide for the abolition of pain due to dental extraction was_____________?

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A. Harpes David

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B. Harvey william

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C. Horace wells

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D. Hunter John

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Horace wells

28 - The drug combination which produces Neuroleptanalgesia is______________?

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A. Daroperidol + Fentanyl

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B. Deroperidol + Ketamine

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C. Droperiodl + Ether

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D. Droperiodl + Thiopental sodium + Nitrous oxide

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Daroperidol + Fentanyl

29 - The drug not belonging to amide group_______________?

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A. Procaine

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B. Xylocaine

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C. Lignocaine

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D. Bupivacaine

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Procaine

30 - The most important property in determining the induction of a general anaesthetic agent is_____________?

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A. Alveolar exchage

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B. Pulmonary ventilation

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C. Solubility of anaesthetic in blood

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D. solubility of anaesthetic in tissue

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Solubility of anaesthetic in blood

31 - The organ most resistant to GA is______________?

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A. Spinal Cord

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B. Medulla oblonagata

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C. Medullary cortex

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D. Cerebrum

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Medulla oblonagata

32 - Which among the following is Not used for surface anesthesia ?

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A. Lignocaine

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B. Procaine

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C. Tetracaine

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D. Benzocaine

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Procaine

33 - Which factor of the following contributes to short duration of anesthetic action of single dose thiopental_____________?

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A. Rapid biotransformation

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B. Rapid accumulation in body fat

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C. High lipid solubility

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D. Ability to enter and leave brain tissue every rapidly

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High lipid solubility

34 - Which of the following anesthetic drugs produces powerful stimulation of the cerebral cortex_____________?

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A. Cocaine

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B. Procaine

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C. Lidocaine

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D. Tetracaine

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Cocaine

35 - Which of the following cannot be used as a surface local anaesthetics ?

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A. Procaine

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B. Tetracaine

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C. Lidocaine

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D. Benzocaine

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Procaine

36 - Which of the following inhalational agents is the induction agent of choice in children______________?

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A. Methoxyflurane

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B. Sevoflurane

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C. Desflurane

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D. Isoflurane

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Sevoflurane

37 - Which one of the following agents sensitises the myocardium to catechlomines____________?

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A. Isoflurane

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B. Ether

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C. Halothane

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D. Proplofol

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Halothane

38 - Which produces dissociative anaesthesia_____________?

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A. Propanidid

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B. Theiopentone sodium

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C. Fentany droperodol

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D. Ketamine

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Ketamine

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