Drugs acting on CNS – All CNS topics EXCEPT NSAIDs Last updated: 2024/04/15 at 6:45 PM Pharmacology Mentor 144 Views Share 0 Min Read SHARE Welcome to your Drugs acting on CNS - All CNS topics EXCEPT NSAIDs Which of the following abolishes the therapeutic effect of levodopa? Benzerazide Pyridoxine Thiamine Carbidopa None Shortest acting benzodiazepine is: Diazepam Lorazepam Midazolam Alprazolam None Which of the following intravenous anesthetic agents is contraindicated in epileptic patients posted for general anesthesia? Propofol Thiopentone Ketamine Midazolam None A newborn developed respiratory depression in a postoperative ward. It can result from the use of? Propofol Heparin Opioid Furosemide None Dissociative anesthesia is seen on administration of: Halothane Ketamine Ether Enflurane None A young man is with known heroin addiction is brought in the emergency in unconscious state. On examination, the patient has decreased bowel sounds, depressed respiration and pin point pupil. The treatment of choice for this patient is: Oral diazepam Oral Buprenorphine IV naloxone Oral natrexone None The specific antidote for benzodiazepine poisoning is: Naloxone Flumazenil Fomepizole Pralidoxime None In treatment of Parkinsonism, L-Dopa is combined with carbidopa mainly: To decrease central side effects of L-Dopa To decrease effectiveness of L-Dopa To increase crossing of L-Dopa through BBB To decrease the treatment duration None A patient with ruptured spleen is taken for laparotomy. His blood pressure is 80/50 and heart rate is 125/min. Induction agent of choice for this patient is: Sodium Thiopentone Halothane Fentanyl Ketamine None A 5 years old child is suffering from cyanotic heart disease. He is planned for corrective surgery. The induction agent of choice would be: Thiopentone Halothane Ketamine Midazolam None True statement regarding Bupivacaine is: Contraindicated in pregnancy More cardiotoxic than lignocaine Used intravenously along with lignocaine None A patient of schizophrenia was started on haloperidol 5 mg. Next day, he presented with uprolling of eyes. Complete neurological examination revealed no spasticity or any other abnormality. Visual acuity and opthalmoscopic findings are normal. Most likely diagnosis is: Acute dystonia Seizure Tardive dyskinesia Akathisia None Which of the following drugs is contra-indicated in acute intermittent porphyria? Propofol Thiopentone Midazolam Etomidate None From which of the following routes, absorption of local anaesthetic is maximum? Caudal Intercostal Brachial Epidural None Which is a treatment of juvenile myoclonic epilepsy in pregnancy? Phenytoin Vigabatrin Carbamazepine Levetiracetam None A person taking tricyclic antidepressants presents with blurred vision and dry mouth. These adverse effects result due to blockade of: GABAA receptors H1 histamine receptors M3 muscarinic receptors 5HT2 receptors None Nitrous oxide is contraindicated in patients with pneumothorax, pneumopericardium or intestinal obstruction, because it: Depresses an already compromised myocardium Permits the use of limited FIO2 only Is less soluble than nitrogen Causes the expansion of air filled body cavities None The drug of choice in treatment of infantile spasms is: Phenytoin Phenobarbitone ACTH/vigabatrin Carbamazepine None Peripheral vasospasm is observed with which of the following anti- Parkinsonian drugs? Bromocriptine Ropinirole Levodopa Entacapone None Which among the following drug is contra-indicated in renal failure? Pethidine Atracurium Morphine Fentanyl None Which one of the following drug is used in Alzheimer’s disease? Methylphenidate Donepezil Doxapram Pemoline None A patient presented with pain in the right lower quadrant of abdomen. He has history of renal stones in right kidney. He was prescribed an opioid which is agonist at kappa receptors and antagonist at mu receptors. The likely drug given was: Buprenorphine Tramadol Fentanyl Pentazocine None Which of the following drugs is used worldwide for the maintenance therapy of opioid dependence? Methadone Pethidine L-NAME Naltrexone None The drug of choice to control convulsions in eclampsia is: Diazepam Magnesium sulphate Pethidine Phenytoin None Which of the following has least extrapyramidal side effect: Haloperidol Fluphenazine Flupenthioxol Clozapine None Fetal hydantoin syndrome is seen if following drug is used in pregnancy? Alcohol Phenytoin Phenobarbitone Ethosuximide None The effect of thiopentone on the CNS is quickly terminated because of: Redistribution Rapid metabolism in the CNS Rapid metabolism in systemic circulation Quick first-pass elimination None A female in labor ward was administered opioid analgesic. Which of the following drugs should be kept ready for emergency? Naloxone Lignocaine Diphenhydramine Fentanyl None Drug of choice in drug induced parkinsonism is: Benzhexol Carbidopa Amantidine Levodopa None Which of the following compounds acts as a benzodiazepine antagonist? Naltrexone Flumazenil Naloxone Furazolidone None Methemoglobinemia is caused by: Prilocaine Procaine Bupivacaine Ropivacaine None Drug of choice for prophylaxis of mania is: Carbamazepine Clozapine Haloperidol Lithium None A 30-year old epileptic female, Kamla on phenytoin therapy, developed weakness and fatigue. Blood examination revealed Hb = 4.6 gm. MCV = 102 fl and MCH = 40 pg/dl. What is the most probable diagnosis? Phenytoin induced agranulocytosis Heart failure Iron deficiency anemia Megaloblastic anemia None A 30 year old female, married since one year, presents to the psychiatry clinic with hyperactivity since 2 weeks. A diagnosis of mania is made. She had 3 prior episodes of mania in last 5 years and every time after taking medication she goes to premorbid state. Her urine pregnancy test is positive. Which is the preferred drug for management of this patient? Lithium Clonazepam Haloperidol Promethazine None Opioid analgesic used in treatment of cough is? Codeine Loperamide Diphenoxylate Meperidine None A 65 years old male presented to a hospital with focal seizures. His renal function was normal. Which of the following is the drug of choice for this patient? Levetiracetam Valporate Pregbalin Oxcarbazepine None Characterstic features of opioid withdrawal is: Seizures Delirium Tremors Rhinorrhea and lacrimation Transient visual, tactile or auditory hallucinations None Both barbiturates and salicylates are maximally absorbed in stomach because: They are highly acidic and are highly ionised in stomach They are highly basic and so less isonized in stomach They are weakly acidic and do not ionise in stomach They are weakly basic and so highly ionised in stomach None One of the following is not true about melatonin: Is secreted by pituitary Is a pineal hormone Induces sleep Used in treatment of jet lag syndrome None In which of the following disorders, administration of barbiturates is contraindicated? Anxiety disorders Acute intermittent porphyria Kernicterus Refractory status epilepticus None All of the following are CNS stimulants except: Amphetamines Benzodiazepines Cocaine Methylphenidate None In alcohol withdrawal, drug of choice is: Buspirone TFP Chlormethazole Chlordiazepoxide None Which one of the following drugs is used to treat status epilepticus? Sodium valporate Primidone Carbamazepine Diazepam None Lithium is used in a pregnant woman. Which of the following congenital anomaly occurs in the fetus? Pulmonary stenosis Bicuspid atresia Ebstein’s anomaly Tetralogy of Fallot None Disulfiram like reaction is not seen with: Disulfiram Amoxicillin Cefoperazone Metronidazole None A patient of depression is stabilized on selective serotonin reuptake inhibitor (SSRI). This group of drugs produced withdrawal symptoms when stopped. Which of the following drugs has minimum risk of causing drug discontinuation symptoms? Fluvoxamine Sertraline Paroxetine Fluoxetine None The disulfiram alcohol reaction occurs due to inhibition of which enzyme: Aldehyde reductase Aldehyde dehydrogenase Alcohol dehydrogenase Alcohol reductase None An addict presents with increased sweating, lacrimation, diarrhea, yawning and rhinorrhea. These symptoms may occur due to withdrawal of: Cannabis Cocaine Alcohol Heroin None Local anaesthetic used as an antiarrhythmic agent is: Cocaine Lignocaine Chlorprocaine Bupivacaine None A female presents with placenta previa with active bleeding and blood pressure of 80/50 mm Hg and pulse rate of 140 bpm. The choice of anaesthesia for emergency cesarean section in this female is? Spinal anaesthesia Epidural anaesthesia General anaesthesia with intravenous propofol General anaesthesia with intravenous ketamine None What is the drug of choice for Obsessive Compulsive Disorder? Alprazolam Fluoxetine Imipramine Benzodiazepines None Which one of the following drug is contraindicated in acute myocardial infarction: Nitroglycerin Beta blockers Pentazocine Morphine None Granulocytopenia, gingival hyperplasia and facial hirsutism are all possible side effects of one of the following anticonvulsant drugs? Carbamazepine Valproate Phenobarbitone Phenytoin None Which of the following drug should not be given along with levodopa: MAO inhibitors Vitamin B complex Benserazide Carbidopa None Tolerance develops to all of the following actions of opioids except: Miosis Analgesia Nausea and vomiting Euphoria None An epileptic adult man is on levetiracetam 1 g twice a day therapy. He is seizure free for 2 years. Now, he started developing irritability, aggression and liability of mood that is affecting his daily life. What should the doctor do? Decrease the dose of levetiracetam Continue the medication for another 3 years Taper the drug over 6 months Stop the drug and start another antiepileptic None Drug of choice for Trigeminal neuralgia is: Valproic acid Carbamazepine Phenobabitone Phenytoin None Neural tube defect is an adverse effect of: Valproate Phenytoin Carbamazepine Diazoxide None A patient of Parkinsonism is managed with levodopa. If Vitamin B complex is administered concurrently to the patient: Decreased efficacy will result The action of levodopa in brain will be potentiated Side effects will be ameliorated Decarboxylation of l-dopa in brain will be decreased None Profound analgesia is produced by which parenteral anesthetic? Etomidate Ketamine Thiopental Propofol None Which of the following is 100 times more potent than morphine? Pentazocin Meperidine Pethidine Fentanyl None A person consumes large quantities of alcohol daily since 20 years. He is physically dependent on alcohol. Drug that should not be given to this person is: Chlordiazepoxide Acamprosate Disulfiram Naltrexone None Buprenorphine is: Full Agonist at mu Receptor Partial agonist at mu Receptor Partial agonist at k Receptor Full Agonist at k receptor None Antidote of methyl alcohol poisoning is: Fomepizole Phenytoin Barbiturate Lamotrigne None Inverse agonist of benzodiazepine receptor is: Flumazenil Phenobarbitone Beta carboline Gabapentin None A patient presented with vomiting and ataxia. There were oxalate crystals in the urine. The patient was given ethanol and 4 methyl pyrazole for treatment. The likely diagnosis of the patient was? Diazepam poisoning Ethanol poisoning Methanol poisoning Ethylene glycol poisoning None Which of the following does not have analgesic action: Ketamine Halothane Ether Morphine None Which of the following agents enhances the bioavailability of levodopa in patients with Parkinson’s disease: Entacapone Selegiline Ropinirole Amantadine None Which of the following local anaesthetics belongs to the ester group? Mepivacaine Lignocaine Bupivacaine Procaine None Opium is a derivative of: Datura stromonium Solanum tuberosum Nicotiana tobacum Papaver somniferum None Drug used for cessation of smoking are all EXCEPT: Varenecilline Buspirone Bupropion Nicotine None Drug used in day care anaesthesia is: Xenon Thiopentone Propofol Enflurane None The most important feature of the following opioid analgesic is high oral parenteral activity ratio (1:2): Morphine Diacetylmorphine Methadone Oxymorphine None A 32-year-old male is a known hypertensive and is being planned for cholecystectomy. Which of the following anaesthetic agents is contraindicated in this person? Ketamine Etomidate Midazolam Propofol None Rave drug is? Heroin Amphetamine Cocaine Cannabis None Which of the following is least narcotic opioid? Morphine Codeine Heroin Papaverine None Time's up Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always seek the advice of a healthcare provider with any questions regarding a medical condition. You Might Also Like PHAL6013 practice quiz -2 PHAL6013 practice questions Local Anesthetics Post Lab Quiz – MDSC2203-2023-24 Quiz on Antihyperlipidemics Quiz on Antihypertensives Sign Up For Daily NewsletterBe keep up! Get the latest breaking news delivered straight to your inbox. Email address: Leave this field empty if you're human: By signing up, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. 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