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NEET PG Exam  >  NEET PG Tests  >  Test: Autonomic Nervous System - 3 - NEET PG MCQ

Test: Autonomic Nervous System - 3 - NEET PG MCQ


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25 Questions MCQ Test - Test: Autonomic Nervous System - 3

Test: Autonomic Nervous System - 3 for NEET PG 2025 is part of NEET PG preparation. The Test: Autonomic Nervous System - 3 questions and answers have been prepared according to the NEET PG exam syllabus.The Test: Autonomic Nervous System - 3 MCQs are made for NEET PG 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Autonomic Nervous System - 3 below.
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Test: Autonomic Nervous System - 3 - Question 1
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Which one of the following acts commonly both on parasympathetic and sympathetic division? (AP 1986) (JIPMER 1986) (TN 1989) (TN 2003)

Test: Autonomic Nervous System - 3 - Question 2
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The short acting anticholinesterase drug is: (TN 2004)

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Test: Autonomic Nervous System - 3 - Question 3
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Anticholineesterase with effect on CNS is: (TN 2005)

Test: Autonomic Nervous System - 3 - Question 4
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Which of the following anticholinesterase is derived from natural source? (TN 2006)
Test: Autonomic Nervous System - 3 - Question 5
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The α2 agonist used in glaucoma is: (TN 2008)
Test: Autonomic Nervous System - 3 - Question 6
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Blood brain barrier is crossed by: (RJ 2001)
Test: Autonomic Nervous System - 3 - Question 7
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Which antiglaucoma drug can be used in an asthmatic patient? (RJ 2005)
Test: Autonomic Nervous System - 3 - Question 8
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Cholinesterase activators are useful for treatment of which poisoning? (MH 2000, 2007)
Test: Autonomic Nervous System - 3 - Question 9
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Neostigmine used in treatment of myasthenia gravis acts by: (MH 2002)
Test: Autonomic Nervous System - 3 - Question 10
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Which of the following drug binds only with the anionic site of cholinesterase? (MH 2008)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 10

Physostigmine, neostigmine, and pyridostigmine are classified as carbamates due to their chemical structure. They interact with both the esteritic and anionic sites. In contrast, edrophonium is an alcohol and interacts solely with the anionic site.

Test: Autonomic Nervous System - 3 - Question 11
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Which among the following is contraindicated in a myasthenic patient? (Jharkhand 2006)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 11
Aminoglycosides may lead to a neuromuscular blockade, which can worsen myasthenia gravis.
Test: Autonomic Nervous System - 3 - Question 12
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A patient requires mild cholinomimetic stimulation following surgery. Physostigmine and bethanechol in small doses have significantly different effects on which of the following? (Karnataka 2005)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 12

Bethanechol interacts solely with muscarinic receptors, while physostigmine enhances ACh levels, allowing it to stimulate both muscarinic and nicotinic receptors. The neuromuscular junction comprises NM receptors; therefore, it will be influenced by physostigmine but not by bethanechol.

Test: Autonomic Nervous System - 3 - Question 13
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In oral poisoning with carbamate insecticides ............... may be hazardous: (Karnataka 2001)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 13

Oximes are not effective in cases of carbamate poisoning. In fact, they may exacerbate the poisoning because of their own weak anticholinesterase activity.

Test: Autonomic Nervous System - 3 - Question 14
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Which of the following drugs does not cross blood placental barrier?
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 14

Glycopyrrolate is a quaternary ammonium compound, which makes it soluble in water and incapable of crossing the blood-brain barrier.

Test: Autonomic Nervous System - 3 - Question 15
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All of the following are actions of muscarinic antagonists except: (AI 2011)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 15
Muscarinic antagonists cause effects that counteract the actions of the parasympathetic system, leading to a reduction in both gastric and respiratory secretions. The role of ACh through muscarinic receptors is to enhance AV conduction, which results in bradycardia. Consequently, the antagonist will lead to the opposite effect, that is, a reduction in AV conduction time. - ACh acting via muscarinic receptors induces contraction of the sphincter pupillae muscle, resulting in miosis. - Muscarinic antagonists, in contrast, will lead to mydriasis. However, this mydriasis occurs passively due to the relaxation of the constrictor pupillae. These agents do not directly stimulate the contraction of the iris's radial muscle; rather, they inhibit the opposing effect of the sphincter pupillae, allowing the radial muscle to function. Therefore, while both (b) and (d) could be correct, if only one answer must be selected, we would certainly choose option (b).
*Multiple options can be correct
Test: Autonomic Nervous System - 3 - Question 16
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Which of the following drug is used for overactive bladder? (AIIMS Nov 2010)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 16

It is probable that there is a typographical error in this question, as it seems they intended to include the word except. This is because anti-cholinergic medications are prescribed for overactive bladder, with darifenacin, solifenacin, oxybutynin, flavoxate, tolterodine, and fesoterodine frequently utilised for this purpose. Therefore, if except appears in the options, the answer would clearly be duloxetine.

Test: Autonomic Nervous System - 3 - Question 17
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A patient presented in emergency with tachycardia, hyperthermia, bronchial dilatation and constipation. The person is likely to be suffering from overdose of:
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 17

Anti-cholinergic overdose is marked by several distinctive traits:

  • Dry mouth and reduced saliva production.
  • Increased heart rate, known as tachycardia.
  • Pupil dilation, or mydriasis, leading to sensitivity to light.
  • Flushed skin due to vasodilation.
  • Difficulty in urination, a condition referred to as urinary retention.
  • Constipation as a result of slowed gastrointestinal motility.
  • Confusion or altered mental status in severe cases.
Test: Autonomic Nervous System - 3 - Question 18
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A child presented with history of ingestion of some unknown plant and developed mydriasis, tachycardia, dry mouth, warm skin and delirium. Which of the following group of drugs is likely to be responsible for the symptoms of this child? (AIIMS May 2010)
Test: Autonomic Nervous System - 3 - Question 19
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Which of the following drug is commonly used in narcoanalysis? (AI 2010)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 19

The controlled administration of intravenous hypnotics to extract information from individuals who are either unable or unwilling to share it through other means is referred to as Narcoanalysis or Narcosynthesis. The medications employed in narcoanalysis include:

  • Ethanol
  • Scopolamine
  • Temazepam
  • Barbiturates such as Thiopentone and Amobarbital

These substances are commonly termed truth drugs or truth serums. Notably, phenobarbitone is not utilised; instead, amobarbital is preferred for narcoanalysis.

Test: Autonomic Nervous System - 3 - Question 20
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All of the following drugs are useful in detrussor instability EXCEPT: (AIIMS Nov 2008)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 20
Anticholinergic medications reduce the movement of the urinary tract, potentially leading to urinary retention, which is why they are not recommended for use in benign prostatic hyperplasia (BPH).
  • Dicyclomine, flavoxate, and oxybutynin are effective in treating urinary incontinence caused by detrusor instability (urge incontinence).
  • Tolterodine, darifenacin, and solifenacin are selective M3 antagonists that are also beneficial for urinary incontinence.
Duloxetine is a selective serotonin reuptake inhibitor (SSRI) prescribed for managing depression.
Test: Autonomic Nervous System - 3 - Question 21
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Botulinum toxin blocks neuromuscular transmission by which of the following mechanism: (DPG 2009)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 21
Botulinum toxin functions by blocking the calcium-dependent exocytosis of ACh from the vesicles within the synapse.
Test: Autonomic Nervous System - 3 - Question 22
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Botulinum toxin produces skeletal muscle paralysis by: (DPG 2009)
Test: Autonomic Nervous System - 3 - Question 23
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Use of tiotropium is contra-indicated in: (AI-2008)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 23
Ipratropium and tiotropium are antimuscarinic medications employed in the management of bronchial asthma and COPD via inhalation.
  • Antimuscarinic drugs are relatively contraindicated in individuals with glaucoma, particularly those with a history of angle closure glaucoma.
  • They are also advised against for patients with a history of BPH due to the risk of urinary retention.
Test: Autonomic Nervous System - 3 - Question 24
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All of the following drugs are used for the treatment of urinary incontinence EXCEPT: (AI-2008)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 24

Ipratropium is an anticholinergic medication that is utilised in the management of COPD and bronchial asthma.

Test: Autonomic Nervous System - 3 - Question 25
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Drug of choice for mushroom poisoning is: (AI 2007)
Detailed Solution for Test: Autonomic Nervous System - 3 - Question 25

The preferred treatment for quickly occurring mushroom poisoning is atropine.

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