he minimal alveolar concentration of an inhalational anaesthetic is a measure of its: A. Potency B. Therapeutic index C. Diffusibility D. Oil: water partition coefficient

he minimal alveolar concentration of an inhalational
anaesthetic is a measure of its:
A. Potency
B. Therapeutic index
C. Diffusibility
D. Oil: water partition coefficient
by

1 Answer

Answer :

A. Potency
by

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The following is not true of local anaesthetics: A. The local anaesthetic is required in the unionized form for penetrating the neuronal membrane B. The local anaesthetic approaches its receptor only from the intraneuronal face of the Na+ channel C. The local anaesthetic binds to its receptor mainly when the Na+ channel is in the resting state D. The local anaesthetic combines with its receptor in the ionized cationic form

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The anaesthetic action of thiopentone sodium is characterised by: A. Good muscle relaxation B. Poor analgesia C. Sensitization of heart to adrenaline D. No postoperative residual CNS depression

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Residual CNS depression is least marked after the use of the following anaesthetic: A. Diazepam B. Thiopentone sodium C. Lorazepam D. Propofo

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Select the general anaesthetic that is particularly suitable for outpatient surgery because of quick recovery and short-lived post-anaesthetic psychomotor impairment: A. Ether B. Halothane C. Enflurane D. Desflurane

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Malignant hyperthermia is a rare complication of use of the following anaesthetic: A. Ketamine B. Thiopentone sodium C. Halothane D. Ether

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Select the general anaesthetic having the most marked uterine relaxant action: A. Propofol B. Halothane C. Nitrous oxide D. Ether

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The general anaesthetic having significant cardiodepressant property is: A. Halothane B. Enflurane C. Ether D. Nitrous oxide

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s a general anaesthetic, halothane has the following advantages except: A. Very good analgesic action B. Noninflammable and nonexplosive C. Reasonably rapid induction of anaesthesia D. Pleasant and nonirritating

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Ether is still used as a general anaesthetic in India, specially in peripheral hospitals because: A. It is nonexplosive B. It is pleasant smelling and nonirritating C. It induces anaesthesia rapidly D. It is cheap and can be administered without anaesthetic machine

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Select the correct statement about nitrous oxide: A. It irritates the respiratory mucosa B. It has poor analgesic action C. It is primarily used as a carrier and adjuvant to other anaesthetics D. It frequently induces post anaesthetic nausea and retching

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The following general anaesthetic has poor muscle relaxant action: A. Ether B. Nitrous oxide C. Halothane D. Isoflurane

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The following anaesthetic can be used by the open drop method: A. Ether B. Desflurane C. Halothane D. Isoflurane

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Which general anaesthetic selectively inhibits excitatory NMDA receptors: A. Thiopentone B. Halothane C. Desflurane D. Ketamine

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Last Answer : D. Ketamine

Epidural anaesthesia differs from spinal anaesthesia in that: A. Epidural anaesthesia produces less cardiovascular complications B. Headache is more common after epidural anaesthesia C. Blood concentrations of the local anaesthetic are lower after epidural anaesthesia D. Greater separation between sensory and motor blockade can be obtained with epidural anaesthes

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The segmental level of spinal anaesthesia depends on: A. Volume of the local anaesthetic injected B. Specific gravity of the local anaesthetic solution C. Posture of the patient D. All of the above factors

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Last Answer : D. All of the above factors

Choose the local anaesthetic that is specifically used to produce corneal anaesthesia for tonometry: A. Tetracaine B. Oxethazaine C. Ropivacaine D. Benoxinate

Description : Choose the local anaesthetic that is specifically used to produce corneal anaesthesia for tonometry: A. Tetracaine B. Oxethazaine C. Ropivacaine D. Benoxinate

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Which of the following statements is true for lignocaine: A. It is an ester-linked local anaesthetic B. It is not likely to exhibit cross-sensitivity with procaine C. It has a shorter duration of action than procaine D. It is not a surface anaesthetic

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The local anaesthetic having high cardiotoxic and arrhythmogenic potential is: A. Lignocaine B. Procaine C. Bupivacaine D. Ropivacaine

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Which of the following is a poor surface anaesthetic: A. Procaine B. Lignocaine C. Tetracaine D. Benoxinate

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Last Answer : A. Procaine

The following local anaesthetic raises BP instead of tending to cause a fall: A. Cocaine B. Dibucaine C. Lignocaine D. Procaine

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Last Answer : A. Cocaine

Adrenaline added to local anaesthetic solution for infiltration anaesthesia affords the following except: A. Prolongs the duration of local anaesthesia B. Makes the injection less painful C. Provides a more bloodless field for surgery D. Reduces systemic toxicity of the local anaesthetic

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Last Answer : B. Makes the injection less painful

Which sensation is blocked first by low concentrations of a local anaesthetic: A. Pain B. Temperature C. Touch D. Deep pressure

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Last Answer : A. Pain

The local anaesthetics having amide linkage differ from those having ester linkage in that the amidelinked local anaesthetics: A. Are not surface anaesthetics B. Have a shorter duration of action C. Are degraded in the plasma D. Do not show cross-sensitivity with esterlinked local anaesthetic

Description : The local anaesthetics having amide linkage differ from those having ester linkage in that the amidelinked local anaesthetics: A. Are not surface anaesthetics B. Have a shorter duration of action C. Are degraded in the plasma D. Do not show cross-sensitivity with esterlinked local anaesthetic

Last Answer : D. Do not show cross-sensitivity with esterlinked local anaesth

n the treatment of hypertension the beta adrenergic blockers have the following advantage: A. They have minimal effect on work capacity, sleep quality and libido B. They do not cause postural hypotension C. Used alone, they have high ceiling antihypertensive efficacy D. They can be used in combination with any other antihypertensive drug

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