Pharmacology MCQs

Page No. 36

Nitrous oxide is______________?


aA good analgesic but a poor anesthetic

✓


bA good anesthetic but a poor analgesic

✖


c A good analgesic and a good anesthetic

✖


dA poor analgesic and a poor anesthetic

✖



About articaine, all are true except_____________?


aPlasma half-life is 90 min

✓


bIs amide which is metabolized in liver

✖


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

✖


dMore breaks down causes more toxicity

✖



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


a Procaine

✓


b Tetracaine

✖


cLidocaine

✖


dBenzocaine

✖


View Answer Procaine

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


a5 to 20% N20

✖


b20 to 30% N20

✖


c30 to 50% N20

✖


d 50 to 70% N20

✓


View Answer 50 to 70% N20

Chloroxylenol has_______________?


a Local anesthetic property

✖


bLocal anesthetic and antiseptic action

✖


cAntiseptic action

✓


d Antibiotic action

✖


View Answer Antiseptic action

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_____________?


aAnalgesia

✓


bExcitation

✖


cSurgical anesthesia

✖


dRespiratory arrest

✖


View Answer Analgesia

Lidocaine produces its antiarrhythmic effects by_____________?


aIncreasing A-V conduction

✖


bDecreasing cardiac excitability

✓


cIncreasing cardiac conduction velocity

✖


dIncreasing spontaneous pacemaker activity

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Cardiac arrhythmias are most commonly seen during administration of____________?


aThiopental

✖


bHalothane

✓


cEthyl Ether

✖


dNitrous oxide

✖


View Answer Halothane

Problems associated with nitrous oxide anaesthesia is_____________?


aBehavioral problem

✓


b Sensitizes the heart to adrenalin

✖


cProlonged difficult induction

✖


d Tachycardia and or arrhythmias

✖


View Answer Behavioral problem

Ketamine is a________________?


aShort general anesthetic agent

✓


b Local anesthetic agent

✖


cAntidepressive agent

✖


dHypnotic agent

✖



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