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

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

1 Answer

Answer :

D. Benoxinate
by

Related questions

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

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

Last Answer : A. Procaine

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

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

Last Answer : C. Bupivacaine

The following local anaesthetic is poorly water soluble, PABA derivative and primarily used for anorectal lesions, wounds and ulcers: A. Benzocaine B. Dibucaine C. Procaine D. Benoxinate

Description : The following local anaesthetic is poorly water soluble, PABA derivative and primarily used for anorectal lesions, wounds and ulcers: A. Benzocaine B. Dibucaine C. Procaine D. Benoxinate

Last Answer : A. Benzocaine

Injection of adrenaline along with a local anaesthetic serves the following purpose: A. Lowers the concentration of the local anaesthetic to produce nerve block B. Prolongs the duration of local anaesthesia C. Increases the anaesthetised area D. Reduces the local toxicity of the local anaesthetic

Description : Injection of adrenaline along with a local anaesthetic serves the following purpose: A. Lowers the concentration of the local anaesthetic to produce nerve block B. Prolongs the duration of local anaesthesia C. Increases the anaesthetised area D. Reduces the local toxicity of the local anaesthetic

Last Answer : B. Prolongs the duration of local anaesthesia

Surface anaesthesia is used for the following except: A. Ocular tonometry B. Urethral dilatation C. Tooth extraction D. Anal fissure

Description : Surface anaesthesia is used for the following except: A. Ocular tonometry B. Urethral dilatation C. Tooth extraction D. Anal fissure

Last Answer : C. Tooth extraction

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

Description : 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 ... . Greater separation between sensory and motor blockade can be obtained with epidural anaesthes

Last Answer : D. Greater separation between sensory and motor blockade can be obtained with epidural anaesthesia

The duration of spinal anaesthesia depends on each of the following except: A. Which local anaesthetic is used B. Concentration of the local anaesthetic used C. Posture of the patient D. Whether adrenaline has been added to the local anaesthetic

Description : The duration of spinal anaesthesia depends on each of the following except: A. Which local anaesthetic is used B. Concentration of the local anaesthetic used C. Posture of the patient D. Whether adrenaline has been added to the local anaesthetic

Last Answer : C. Posture of the patient

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

Description : 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

Last Answer : D. All of the above factors

n which of the following techniques the concentration of the local anaesthetic used is the lowest: A. Infiltration anaesthesia B. Nerve block anaesthesia C. Spinal anaesthesia D. Epidural anaesthesia

Description : n which of the following techniques the concentration of the local anaesthetic used is the lowest: A. Infiltration anaesthesia B. Nerve block anaesthesia C. Spinal anaesthesia D. Epidural anaesthesia

Last Answer : A. Infiltration anaesthesia

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

Description : 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

Last Answer : B. Makes the injection less painful

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

Description : 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

Last Answer : A. Very good analgesic action

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

Description : 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

Last Answer : A. It is nonexplosive

Pain from local anaesthesia injection can be reduced by: a. warming the local anaesthetic b. quick injection c. using a needle with a small bore d. adding sodium bicarbonate in the local anaesthetic

Description : Pain from local anaesthesia injection can be reduced by: a. warming the local anaesthetic b. quick injection c. using a needle with a small bore d. adding sodium bicarbonate in the local anaesthetic

Last Answer : adding sodium bicarbonate in the local anaesthetic

Adrenaline injected with a local anaesthetic: A. Reduces local toxicity of the local anaesthetic B. Reduces systemic toxicity of the local anaesthetic C. Shortens duration of local anaesthesia D. Makes the injection less painful

Description : Adrenaline injected with a local anaesthetic: A. Reduces local toxicity of the local anaesthetic B. Reduces systemic toxicity of the local anaesthetic C. Shortens duration of local anaesthesia D. Makes the injection less painful

Last Answer : B. Reduces systemic toxicity of the local anaesthetic

Oxethazaine is used for anaesthetizing gastric mucosa because: A. It is not absorbed from the gastrointestinal tract B. It remains largely unionized in acidic medium C. It is highly ionized in acidic medium D. It produces no systemic effects even at high doses

Description : Oxethazaine is used for anaesthetizing gastric mucosa because: A. It is not absorbed from the gastrointestinal tract B. It remains largely unionized in acidic medium C. It is highly ionized in acidic medium D. It produces no systemic effects even at high doses

Last Answer : B. It remains largely unionized in acidic medium

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

Description : 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

Last Answer : B. It is not likely to exhibit cross-sensitivity with procaine

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

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

Last Answer : A. Cocaine

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

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

Last Answer : A. Pain

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

Description : 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 ... the resting state D. The local anaesthetic combines with its receptor in the ionized cationic form

Last Answer : C. The local anaesthetic binds to its receptor mainly when the Na+ channel is in the resting state

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

Which local anesthetic should be used to treat symptoms of pain, itching, burning, and disconfort in patients with an established lidocaine allergy? (a) Tetracaine (b) Dibucaine (c) Pramoxine (d) Benzocaine

Description : Which local anesthetic should be used to treat symptoms of pain, itching, burning, and disconfort in patients with an established lidocaine allergy? (a) Tetracaine (b) Dibucaine (c) Pramoxine (d) Benzocaine

Last Answer : Ans: C

If a patient being anaesthetised with ether is unconscious, has regular respiration, blood pressure and heart rate are normal, corneal reflex is present and eyeballs are roving, the patient is in: A. Stage II B. Stage III plane 1 C. Stage III plane 2 D. Stage III plane 3

Description : If a patient being anaesthetised with ether is unconscious, has regular respiration, blood pressure and heart rate are normal, corneal reflex is present and eyeballs are roving, the patient is in: A. Stage II B. Stage III plane 1 C. Stage III plane 2 D. Stage III plane 3

Last Answer : B. Stage III plane 1

The most suitable mydriatic for a patient of corneal ulcer is: A. Atropine sulfate B. Homatropine C. Cyclopentolate D. Tropicamide

Description : The most suitable mydriatic for a patient of corneal ulcer is: A. Atropine sulfate B. Homatropine C. Cyclopentolate D. Tropicamide

Last Answer : A. Atropine sulfate

A patient returning from dinner party meets with road accident and has to be urgently operated upon under general anaesthesia. Which drug can be injected intramuscularly to hasten his gastric emptying: A. Methylpolysiloxane B. Promethazine C. Metoclopramide D. Apomorphine

Description : A patient returning from dinner party meets with road accident and has to be urgently operated upon under general anaesthesia. Which drug can be injected intramuscularly to hasten his gastric emptying: A. Methylpolysiloxane B. Promethazine C. Metoclopramide D. Apomorphine

Last Answer : C. Metoclopramide

Use of glycopyrrolate in preanaesthetic medication serves the following purposes except: A. Prevents respiratory secretions during anaesthesia B. Guards against reflex vagal bradycardia during surgery C. Produces amnesia for perioperative events D. Reduces the probability of occurrence of laryngospasm

Description : Use of glycopyrrolate in preanaesthetic medication serves the following purposes except: A. Prevents respiratory secretions during anaesthesia B. Guards against reflex vagal bradycardia during ... Produces amnesia for perioperative events D. Reduces the probability of occurrence of laryngospasm

Last Answer : C. Produces amnesia for perioperative events

nduction of anaesthesia with propofol is often attended by: A. Transient apnoea B. Sharp short lasting fall in blood pressure C. Pain in the injected vein D. All of the above

Description : nduction of anaesthesia with propofol is often attended by: A. Transient apnoea B. Sharp short lasting fall in blood pressure C. Pain in the injected vein D. All of the above

Last Answer : D. All of the above

The drug/drugs used mainly for induction of general anaesthesia is/are: A. Thiopentone sodium B. Fentanyl + droperidol C. Ketamine D. All of the above

Description : The drug/drugs used mainly for induction of general anaesthesia is/are: A. Thiopentone sodium B. Fentanyl + droperidol C. Ketamine D. All of the above

Last Answer : A. Thiopentone sodium

The following is true of sevoflurane except: A. It induces anaesthesia rapidly B. It is nonpungent C. It produces prolonged postanaesthetic psychomotor impairment D. It is less potent than halothane

Description : The following is true of sevoflurane except: A. It induces anaesthesia rapidly B. It is nonpungent C. It produces prolonged postanaesthetic psychomotor impairment D. It is less potent than halothane

Last Answer : C. It produces prolonged postanaesthetic psychomotor impairment

Which of the following is a sign of deep anaesthesia: A. Appearance of tears in eyes B. Resistance to passive inflation of lungs C. Fall in blood pressure D. Patient makes swallowing movements

Description : Which of the following is a sign of deep anaesthesia: A. Appearance of tears in eyes B. Resistance to passive inflation of lungs C. Fall in blood pressure D. Patient makes swallowing movements

Last Answer : C. Fall in blood pressure

No surgical operation should be performed during the following stage of anaesthesia: A. Stage I B. Stage II C. Stage III, plane 1 D. Stage III, plane 3

Description : No surgical operation should be performed during the following stage of anaesthesia: A. Stage I B. Stage II C. Stage III, plane 1 D. Stage III, plane 3

Last Answer : B. Stage II

Intravenous regional anaesthesia is suitable for: A. Orthopedic manipulations on the upper limb B. Vascular surgery on the lower limb C. Head and neck surgery D. Caesarian section

Description : Intravenous regional anaesthesia is suitable for: A. Orthopedic manipulations on the upper limb B. Vascular surgery on the lower limb C. Head and neck surgery D. Caesarian section

Last Answer : A. Orthopedic manipulations on the upper limb

Spinal anaesthesia is not suitable for: A. Vaginal delivery B. Lower segment caesarian section C. Prostatectomy D. Operations on mentally ill patients

Description : Spinal anaesthesia is not suitable for: A. Vaginal delivery B. Lower segment caesarian section C. Prostatectomy D. Operations on mentally ill patients

Last Answer : D. Operations on mentally ill patient

The following factor is not involved in the causation of hypotension due to spinal anaesthesia: A. Histamine release B. Reduced sympathetic vasoconstrictor tone C. Decreased venous return from the lower limbs D. Bradycardia

Description : The following factor is not involved in the causation of hypotension due to spinal anaesthesia: A. Histamine release B. Reduced sympathetic vasoconstrictor tone C. Decreased venous return from the lower limbs D. Bradycardia

Last Answer : A. Histamine release

In spinal anaesthesia the segmental level of: A. Sympathetic block is lower than the sensory block B. Sympathetic block is higher than the sensory block C. Motor block is higher than the sensory block D. Sympathetic, motor and sensory block has the same level

Description : In spinal anaesthesia the segmental level of: A. Sympathetic block is lower than the sensory block B. Sympathetic block is higher than the sensory block C. Motor block is higher than the sensory block D. Sympathetic, motor and sensory block has the same level

Last Answer : B. Sympathetic block is higher than the sensory block

Indications of centrally acting muscle relaxants include all of the following except: A. Balanced anaesthesia B. Traumatic muscle spasms C. Torticollis D. Electroconvulsive therapy

Description : Indications of centrally acting muscle relaxants include all of the following except: A. Balanced anaesthesia B. Traumatic muscle spasms C. Torticollis D. Electroconvulsive therapy

Last Answer : A. Balanced anaesthesia

Depolarizing neuromuscular blockers differ from competitive blockers in the following attributes except: A. They induce contraction of isolated frog rectus abdominis muscle B. Ether anaesthesia intensifies block produced by them C. Tetanic nerve stimulation during partial depolarizing block produces well sustained contraction D. Neostigmine does not reverse block produced by them

Description : Depolarizing neuromuscular blockers differ from competitive blockers in the following attributes except: A. They induce contraction of isolated frog rectus abdominis muscle B. Ether anaesthesia ... produces well sustained contraction D. Neostigmine does not reverse block produced by them

Last Answer : B. Ether anaesthesia intensifies block produced by them

5 A nonvolatile, highly lipid soluble drug is metabolized at a rate of 15% per hour. On intravenous injection it produces general anaesthesia for 10 min. Which process is responsible for termination of its action: A. Metabolism in liver B. Plasma protein binding C. Excretion by kidney D. Redistribution

Description : 5 A nonvolatile, highly lipid soluble drug is metabolized at a rate of 15% per hour. On intravenous injection it produces general anaesthesia for 10 min. Which process is responsible for termination ... : A. Metabolism in liver B. Plasma protein binding C. Excretion by kidney D. Redistribution

Last Answer : D. Redistribution

Select the anaesthetic that increases cardiac output and blood pressure: A. Halothane B. Fentanyl C. Ketamine D. Diazepam

Description : Select the anaesthetic that increases cardiac output and blood pressure: A. Halothane B. Fentanyl C. Ketamine D. Diazepam

Last Answer : C. Ketamine

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

Description : 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

Last Answer : B. Poor analgesia

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

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

Last Answer : D. Propofol

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

Description : 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

Last Answer : D. Desflurane

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

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

Last Answer : D. Ether

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

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

Last Answer : B. Halothane

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

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

Last Answer : A. Halothane

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

Description : 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

Last Answer : C. It is primarily used as a carrier and adjuvant to other anaesthetics

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

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

Last Answer : B. Nitrous oxide

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

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

Last Answer : A. Ether

Select the inhalational general anaesthetic which is metabolized in the body to a significant extent: A. Sevoflurane B. Isoflurane C. Ether D. Halothane

Description : Select the inhalational general anaesthetic which is metabolized in the body to a significant extent: A. Sevoflurane B. Isoflurane C. Ether D. Halothane

Last Answer : D. Halothane

'Diffusion hypoxia’ is likely to occur only after use of nitrous oxide because it: A. Is a respiratory depressant B. Has low blood solubility and is used in high concentration C. Is a very potent anaesthetic D. Interferes with diffusion of oxygen into the tissues

Description : 'Diffusion hypoxia’ is likely to occur only after use of nitrous oxide because it: A. Is a respiratory depressant B. Has low blood solubility and is used in high concentration C. Is a very potent anaesthetic D. Interferes with diffusion of oxygen into the tissues

Last Answer : B. Has low blood solubility and is used in high concentration

The following factor delays induction with an inhaled general anaesthetic: A. Alveolar perfusion-ventilation mismatch B. Hyperventilation C. Low blood:gas partition coefficient of the anaesthetic D. Inclusion of 5% carbon dioxide in the inhaled gas mixture

Description : The following factor delays induction with an inhaled general anaesthetic: A. Alveolar perfusion-ventilation mismatch B. Hyperventilation C. Low blood:gas partition coefficient of the anaesthetic D. Inclusion of 5% carbon dioxide in the inhaled gas mixture

Last Answer : A. Alveolar perfusion-ventilation mismatch