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PharmacologyDrugs Acting On Autonomous Nervous System
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Q55314.Β Several children at a summer camp were hospitalized with symptoms thought to be due to ingestion of food containing botulinum toxins. The effects of botulinum toxin are likely to include

A.Bronchospasm
B.Cycloplegia
C.Diarrhea
D.Skeletal muscle spasms

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MCQs in PharmacologyDrugs Acting On Autonomous Nervous System
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Q55315.Β The neurotransmitter agent that is normally released in the sinoatrial node of the heart in response to a blood pressure increase is

A.Acetylcholine
B.Dopamine
C.Epinephrine
D.Glutamate

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MCQs in Pharmacology
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Q55316.Β A direct-acting cholinomimetic that is lipid-soluble and often used in the treatment of glaucoma is

A.Acetylcholine
B.Bethanechol
C.Physostigmine
D.Pilocarpine

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Q55317.Β Which of the following agents is a pro- drug that is much less toxic in mammals than in insects ?

A.Acetylcholine
B.Bethanechol
C.Physostigmine
D.Pilocarpine

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MCQs in PharmacologyDrugs Acting On Autonomous Nervous System
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Q55318.Β Atropine overdose may cause which one of the following

A.Gastrointestinal smooth muscle crampine
B.Increased cardiac rate
C.Increased gastric secretion
D.Pupillary constriction

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Q55319.Β The synaptic pre-ganglionic neurons have their cell bodies in the lateral horn of the grey matter of the

A.Thoracic segment only
B.Lumbar segment only
C.Both (a) and (b)
D.None of the above

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Q55320.Β Which one of the following can be blocked by atropine?

A.Decreased blood pressure caused by
B.Increased blood pressure caused by nicotine
C.Increased skeleton muscle strength caused
D.Tachycardia caused by exercise

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Q55321.Β Which of the following best describes the mechanism of action of scopolamine ?

A.Irreversible antagonist at nicotinic receptors
B.Irreversible antagonist at muscarinic
C.Physiologic antagonist at muscarinic receptors
D.Reversible antagonist at muscarinic receptors

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Q55322.Β Accepted therapeutic indications for the use of antimuscarinic drugs include all of the following except

A.Hypertension
B.Motion sickness
C.Parkinson’s disease
D.Postoperative bladder spasm

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Q55323.Β In male sex organs _______ system is responsible for erection.

A.Sympathetic
B.Parasympathetic
C.Norepinephrine
D.None of the above

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Q55324.Β A 7-years-old boy has a significant bed- wetting problem. A long-acting indirect sympathomimetic agent sometimes used by the oral route for this and other indications is

A.Dobutamine
B.Ephedrine
C.Epinephrine
D.Isoproterenol

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Q55325.Β When pupillary dilation-but not cyclo- plegia-is desired, a good choice is

A.Homatropine
B.Isoproterenol
C.Phenylephrine
D.Pilocarpine

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Q55326.Β β€˜Fight or flight’ state can be described as

A.Sympathetic active; para-sympathetic
B.Sympathetic active; para-sympathetic active
C.Sympathetic quiescent; para-sympathetic

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Q55327.Β Your patient is to receive a selective Ξ²2 stimulant drug Ξ²2 selective stimulant are often effective in

A.Angina due to coronary insufficiency
B.Asthma
C.Chronic heart failure
D.Delayed or insufficiently strong labor

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Q55328.Β Which of the following drugs is the drug of choice in anaphylaxis associated with bronchospasm and hypotension ?

A.Cortisone
B.Epinephrine
C.Isoproterenol
D.Norepinephrine

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Q55329.Β Which of the following effects of epineph- rine would be blocked by phentolamine but not by metoprolol ?

A.Cardiac stimulation
B.Contractionof radial smooth muscle in the iris
C.Increase of camp in fat
D.Relaxation of bronchial smooth muscle

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Q55330.Β Propranolol is useful in all of the following except

A.Angina
B.Familial tremor
C.Hypertension
D.Idiopathic hypertrophic subaortic cardiomy-

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Q55331.Β β€˜Rest and digest’ state can be described as

A.Sympathetic active; para-sympathetic
B.Sympathetic active; para-sympathetic active
C.Sympathetic quiescent; para-sympathetic

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Q55332.Β A friend has very severe hypertension and asks about a drug her doctor wishes to prescribe. Her physician has explained that this drug is associated with tachycardia and fluid retention (which may be marked) and increased hair growth. Which of the following is most likely to produce the effects that your friend has described?

A.Captopril
B.Guanethidine
C.Minoxidil
D.Prazosin

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Q55333.Β Which one of the following is character- istic of captopril and enalapril ?

A.Competitively blocks angiotensim II at its
B.Decreases angiotensin II concentration in the
C.Decreases rennin concentration in the blood
D.Increases sodium and decreases potassium

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