Review of Pharmacology - 9E (2015)

Review of Pharmacology
Autonomic Nervous System
92
31. Atropine is added to commercial preparations containing
diphenoxylate to:
(a) Potentiate us anti-spasmodic effect
(b) To reduce excretion of salt and water
(c) To prevent overdosage and discourage opioid dependence
(d) To prolong its duration of action
32. Beta-adrenoceptor blocking agent that should be
avoided in patients with renal failure is:
(a) Atenolol
(b) Metoprolol
(c) Propranolol
(d) Esmolol
33. The mydriatic drug with short duration of action is:
(a) Cyclopentolate
(b) Tropicamide
(c) Homatropine
(d) Atropine
34. All of the following are used in organophosphorus
poisoning except:
(a) Pralidoxime
(b) Atropine
(c) Activated charcoal
(d) Naltrexone
35. A 35 year old man was found unconscious. Examination
revealed bilateral constricted pupils, bradycardia,
excessive sweating and secretion. Most likely cause is:
(a) Opium poisoning
(b) Acute alcohol intoxication
(c) Organophosphorous poisoning
(d) Pontine hemorrhage
36. Which one of the following drugs does not induce mydriasis:
(a) Phentolamine
(b) Ephedrine
(c) Phenylephrine
(d) Cocaine
37. Blockade of neuromuscular transmission by botulinum
toxin is an example of:
(a) Depolarizing blockade
(b) Competitive blockade
(c) Presynaptic blockade
(d) Postsynaptic blockade
38. Atropine when used as a pre-medication causes all of
the following symptoms except:
(a) Skin flush
(b) Bronchoconstriction
(c) Prevents bradycardia
(d) Dryness of mouth
39. Patients taking a b-adrenergic receptor blocking drug
may experience all of the following except:
(a) Exacerbation of existing heart block
(b) Precipitation of heart failure
(c) Nasal blockage
(d) Cold extremities
40. Beta blocker with peripheral vasodilator action is:
(a) Propanolol
(b) Carvedilol
(c) Atenolol
(d) Acebutolol
41. Which of the following drugs is useful in anaphylactic
shock:
(a) Isoprenaline
(b) Adrenaline
(c) Non-adrenaline
(d) Terbutaline
42. A 24 years old farm worker is rushed to a nearby emergency
department after an accidental exposure to parathion.
Which of the following drugs can be given to
increase the activity of his acetyl cholinesterase:
(a) Atropine
(b) Dimercaprol
(c) Physostigmine
(d) Pralidoxime
43. Which of the following drug is not used in treatment of
iridocyclitis:
(a) Atropine eye ointment
(b) Pilocarpine eye drops
(c) Timolol eye drops
(d) Steroid eye drops
44. All of the following are the feature of atropine poisoning
except:
(a) Mydriasis
(b) Hallucinations
(c) Hypothermia
(d) Coma
45. Catecholamines are synthesized from:
(a) Alanine
(b) Glycine
(c) Cysteine
(d) Tyrosine
46. The drug that is contraindicated in angle closure glaucoma
is:
(a) Pilocarpine
(b) Atropine
(c) Dorzolamide
(d) Timolol
47. Pilocarpine reduce the intraocular pressure in persons
with closed angle glaucoma by:
(a) Reducing aqueous humor secretion
(b) Contrating iris sphincter muscle
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