MCQs-Drugs Acting on Central Nervous System part 7 I Pharmacology KD Tripathi mcqs part 31

 31.1 Which of the following is a selective MAO-B inhibitor:

A. Selegiline

B. Clorgyline

C. Moclobemide

D. Tranylcypromine 


31.2 The nonselective MAO inhibitors are not used clinically

as antidepressants because of their:

A. Low antidepressant efficacy

B. Higher toxicity

C. Potential to interact with many foods and drugs

D. Both 'B' and 'C' are correct


31.3 Which of the following MAO inhibitors is most likely

to produce cheese reaction:

A. Tranylcypromine

B. Moclobemide

C. Selegiline

D. Clorgyline


31.4 The following is a reversible and selective MAO-A inhibitor:

A. Bupropion

B. Entacapone

C. Moclobemide

D. Selegiline 


31.5 'Cheese reaction' in a MAO inhibited patient manifests as:

A. Precipitous fall in blood pressure and shock

B. Hypertensive crisis

C. Acute manic episode

D. Convulsions


31.6 Choose the correct statement about moclobemide:

A. It is a reversible inhibitor of MAO-A with short duration of action

B. Patients taking it need to be cautioned not to consume tyramine rich food

C. It is contraindicated in elderly patients

D. It produces anticholinergic side effects


31.7 Imipramine given to nondepressed individuals produces:

A. Euphoria

B. Insomnia

C. Lethargy and light headedness

D. Inappropriate behaviour 


31.8 Of the following, choose the antidepressant having

both high sedative and high anticholinergic activity:

A. Imipramine

B. Amitriptyline

C. Fluoxetine

D. Trazodone 


31.9 The antidepressant which selectively blocks

5-hydroxytryptamine uptake is:

A. Fluoxetine

B. Amoxapine

C. Desipramine

D. Dothiepin


31.10 Imipramine produces the following actions except:

A. Euphoria

B. Dryness of mouth

C. Tachycardia

D. Lowering of seizure threshold 


31.11 Adaptive changes in brain monoamine turnover due

to blockade of noradrenaline/5-HT reuptake is credited

with the following effect:

A. Antipsychotic

B. Antianxiety

C. Antiparkinsonian

D. Antidepressant 


31.12 The mechanisms involved in the causation of

dangerous cardiac arrhythmias due to overdose of

tricyclic antidepressants include the following except:

A. Intraventricular conduction block

B. Potentiation of noradrenaline

C. Antagonism of acetylcholine

D. Increased vagal tone


31.13 A 65-year-old man was brought to the hospital with

complaints of pain in lower abdomen and not having

passed urine for 16 hours. The bladder was found to

be full. His son informed that he was depressed for

the last 2 years and only the day before a doctor had

given him some medicine. Which of the following

drugs is he most likely to have received:

A. Alprazolam

B. Sertraline

C. Amitryptyline

D. Trazodone


31.14 The following drug/drugs should not be used to treat

tricyclic antidepressant drug poisoning:

A. Quinidine

B. Digoxin

C. Atropine

D. All of the above 


31.15 Limitations of typical tricyclic antidepressants

include the following except:

A. Narrow safety margin

B. Low oral bioavailability

C. Frequent side effects

D. Long latent period for response 


31.16 Tricyclic antidepressants abolish the antihypertensive

action of the following drug:

A. Enalapril

B. Clonidine

C. Atenolol

D. Diltiazem


31.17 The following is a tetracyclic antidepressant that has

additional dopamine blocking and neuroleptic

properties, as well as greater propensity to cause

seizures in overdose:

A. Amoxapine

B. Doxepin

C. Dothiepin

D. Trazodone


31.18 The selective serotonin reuptake inhibitors have

overcome the following limitation(s) of typical tricyclic

antidepressants:

A. Frequent anticholinergic, sedative and hypotensive side effects

B. High risk of cardiac arrhythmias and seizures in overdose

C. Delayed response

D. Both 'A' and 'B' are correct


31.19 Advantages of selective serotonin reuptake inhibitors

(SSRIs) include the following except:

A. No interference with ejaculation and orgasm

B. Minimal sedative action

C. Unlikely to cause fall in BP

D. Lack of seizure precipitating potential


31.20 Choose the selective serotonin reuptake inhibitor that

is less likely to inhibit CYP2D6 and CYP3A4 resulting

in fewer drug interactions:

A. Sertraline

B. Paroxetine

C. Fluoxetine

D. Fluvoxamine


31.21 Currently, the selective serotonin reuptake inhibitors

are the preferred drugs for the following psychiatric

disorder/disorders:

A. Phobias

B. Obsessive-compulsive disorder

C. Post-traumatic stress disorder

D. All of the above 


31.22 The distinctive features of fluoxetine compared to the

typical tricyclic antidepressants include the following

except:

A. It is less likely to produce cardiac arrhythmias in overdose

B. It infrequently produces sedative and anticholinergic side effects

C. It can elevate mood of apparently nondepressed

patients suffering from chronic somatic

illness

D. It does not block neuronal uptake of biogenic amines 


31.23 The following antidepressant increases rather than

inhibits 5-HT uptake into neurones:

A. Clomipramine

B. Fluoxetine

C. Tianeptine

D. Trazodone


31.24 Venlafaxine differs from standard tricyclic

antidepressants in that it:

A. Does not inhibit 5-HT reuptake

B. Does not inhibit noradrenaline reuptake

C. Does not have anticholinergic or antiadrenergic property

D. Has lower antidepressant efficacy 


31.25 Which of the following is labelled as a 'serotonin and

noradrenaline reuptake inhibitor or SNRI':

A. Amineptine

B. Venlafaxine

C. Bupropion

D. Citalopram


 31.26 Choose the drug that has been labelled as a

'noradrenergic and specific serotonergic antidepressant'

or 'Na SSA':

A. Mirtazapine

B. Mianserin

C. Venlafaxine

D. Sertraline 


31.27 The following is true of bupropion except:

A. It inhibits dopamine reuptake along with

inhibiting noradrenaline reuptake

B. It produces sedation as a side effect

C. It is being used as an aid for smoking cessation

D. It is likely to produce seizures in overdose


31.28 A patient of endogenous depression was put on

imipramine therapy. After what interval the therapeutic

effect is likely to manifest:

A. Three days

B. One week

C. Three weeks

D. Three months


31.29 Prolonged painful erection of penis has been noted

particularly as a side effect of:

A. Doxepin

B. Citalopram

C. Bupropion

D. Trazodone 


31.30 The tricyclic antidepressants are also effective in the

following psychiatric disorders except:

A. Schizophrenia

B. Obsessive-compulsive disorder

C. Bulimia

D. Phobic states 


31.31 A 30-year-old woman suffering from endogenous

depression improved after one month of treatment with

amitriptyline. How long the drug should be continued:

A. 1-2 weeks

B. 6-12 months

C. 2-3 years

D. Life long


31.32 Diabetic and other types of neuropathic pain often responds to:

A. Chlorpromazine

B. Diazepam

C. Imipramine

D. Lithium 


31.33 Indications of tricyclic antidepressants include the following except:

A. Attention deficit-hyperactive disorder in children

B. Mania

C. Prophylaxis of migraine

D. Panic disorder


31.34 The following statement about lithium is not correct:

A. It has a sedative action in normal individuals

B. It controls mania, but takes 1–2 weeks to produce the effect

C. It has prophylactic effect in recurrent unipolar depression

D. It can be combined with tricyclic antidepressants for refractory cases of major depression


31.35 For therapeutic effect in manic depressive illness,

steady-state serum lithium concentration should be

maintained between:

A. 0.2–0.4 mEq/L

B. 0.5–0.8 mEq/L

C. 1.0–1.3 mEq/L

D. 1.5–2.5 mEq/L


31.36 Select the psychotropic drug having a narrow safety margin:

A. Chlorpromazine

B. Buspirone

C. Lithium carbonate

D. Fluoxetine 


31.37 Renal excretion of lithium is reduced by:

A. Furosemide

B. Hydrochlorothiazide

C. Indomethacin

D. All of the above


31.38 The following drug can be used as an alternative to lithium in mania and bipolar illness:

A. Carbamazepine

B. Carisoprodol

C. Clomipramine

D. Diethyl carbamazine 


31.39 The constellation of side effects consisting of thirst,

polyuria, looseness of stools and fine tremors is

characteristically associated with the following

psychotropic drug:

A. Amitriptyline

B. Lithium carbonate

C. Lorazepam

D. Buspirone


31.40 Prolonged lithium therapy can cause:

A. Diabetes mellitus

B. Goiter

C. Parkinsonism

D. Gout


31.41 Drugs effective in bipolar illness include the following except:

A. Olanzapine

B. Diazepam

C. Sodium valproate

D. Lamotrigine


Ans:

31.1 A 31.2D 31.3 A 31.4 C 31.5 B 31.6 A 31.7 C 31.8 B 31.9 A 31.10 A 31.11D 31.12D 31.13 C 31.14D 31.15 B 31.16 B 31.17 A 31.18D 31.19 A 31.20 A 31.21D 31.22D 31.23 C 31.24 C 31.25 B 31.26 A 31.27 B 31.28 C 31.29D 31.30 A 31.31 B 31.32 C 31.33 B 31.34 A 31.35 B 31.36 C 31.37D 31.38 A 31.39 B 31.40 B 31.41 B 

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