MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 529 Mcqs, each offering curated multiple-choice questions to sharpen your Medical Subjects knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
All of the following statements regarding biovailability of a drug are true except______________? |
| A. | It is the proportion (fraction) of unchanged drug that reaches the systemic circulation |
| B. | Biovailability of an orally administered drug can be calculated by comparing the area under cure (o-a) after oral and intravenous (IV) administration |
| C. | Low oral biovailability always and necessarily mean poor absorption |
| D. | Biovailability can be determined from plasma concentration or urinary excretion data |
| Answer» D. Biovailability can be determined from plasma concentration or urinary excretion data | |
| 452. |
All of the following statements about pain are correct except_____________? |
| A. | Analgesia is associated with μ and k receptors |
| B. | Dysphoria is associated with S receptors |
| C. | NSAIDS benefit by preventing prostaglandin synthesis |
| D. | Naloxane is a non-competitive antagonist and irreversibly opposes the opioids |
| Answer» E. | |
| 453. |
All of the following statements about opioids is correct except_____________? |
| A. | Pentazocine and buprinorphine |
| B. | Pentazocine shows withdrawal symptoms in opioid dependent patients |
| C. | Partial agonists are free from classic opioid adverse effects |
| D. | Ethomorphine is similar to pethidine chemically |
| Answer» D. Ethomorphine is similar to pethidine chemically | |
| 454. |
All of the following statement about antimalarial drugs are correct except_____________? |
| A. | Primaquine is liable to cause hemolysis in patients with G6PD deficiency |
| B. | Halofantrine prolongs QT interval and causes dysarrythmia |
| C. | Mefloquine may safely be given to air pilots |
| D. | Primaquine eliminates P. vivax and P. ovale |
| Answer» D. Primaquine eliminates P. vivax and P. ovale | |
| 455. |
All of the following penetrate the CSF except________________? |
| A. | Dextrose |
| B. | Dilantine |
| C. | Diazepam |
| D. | Dopamine |
| Answer» E. | |
| 456. |
All of the following glucocorticorticoids can be given by inhalation EXCEPT_______________? |
| A. | Dexamethasone |
| B. | Beclomethasone |
| C. | Budesonide |
| D. | Fluticasone |
| Answer» B. Beclomethasone | |
| 457. |
All of the following have receptors which are transcription factors except____________? |
| A. | Insulin |
| B. | Estrogen |
| C. | Vitamin D |
| D. | Glucocorticoid |
| Answer» B. Estrogen | |
| 458. |
All of the following drugs cause dryness of mouth except_______________? |
| A. | Atropine |
| B. | Chlorpheniramine |
| C. | Imipramine |
| D. | Neostigmine |
| Answer» E. | |
| 459. |
All of the following drugs are useful in treatment of hypertension except______________? |
| A. | Ephedrine |
| B. | Reserpine |
| C. | Methyldopa |
| D. | Thiazole diuretics |
| Answer» B. Reserpine | |
| 460. |
All of the following drugs are primarily bacteriostatic except______________? |
| A. | Sulphonamide |
| B. | Chloramphenicol |
| C. | Ethambutol |
| D. | Rifampin |
| Answer» E. | |
| 461. |
All of the following drugs are contraindicated in patients with G-6-PD deficiency, except____________? |
| A. | Cotrimoxazole |
| B. | Furazolidone |
| C. | Nalidixic acid |
| D. | Ceftriaxone |
| Answer» E. | |
| 462. |
All of the following drugs are components of the MOPP cancer Chemotherapy regimen EXCEPT______________? |
| A. | Procarbazine |
| B. | Vincristine |
| C. | Mechlorethamine |
| D. | Methotrexate |
| Answer» E. | |
| 463. |
All of the following decrease skeletal muscle tone by CNS effects except____________? |
| A. | D-tubocurarin |
| B. | Diazepam |
| C. | Beclofen |
| D. | Mephensin |
| Answer» B. Diazepam | |
| 464. |
All of the following cephalosporines are active against Pseudomonas Except_____________? |
| A. | Ceftazidine |
| B. | Cefotaxime |
| C. | Cefoperazone |
| D. | Cefaclor |
| Answer» E. | |
| 465. |
All of the following causes increase in heart rate except________________? |
| A. | Halothane |
| B. | Isoflurane |
| C. | Sevoflurane |
| D. | Desflurane |
| Answer» B. Isoflurane | |
| 466. |
All of the following are vasodilators except______________? |
| A. | Cocaine |
| B. | Etomidate |
| C. | Cyclopropane |
| D. | Procaine |
| Answer» B. Etomidate | |
| 467. |
All of the following are true except____________? |
| A. | A special application of dantrolene is used to treat malignant hyperthermia |
| B. | Interferons have a role in immunology of cancer |
| C. | Thalidomide is used for the treatment of leprosy |
| D. | Allopurinol is a derivative of 8-mercaptopurine |
| Answer» D. Allopurinol is a derivative of 8-mercaptopurine | |
| 468. |
All of the following are true about tolbutamide except____________? |
| A. | It is taken orally |
| B. | It is used in type-I diabetes mellitus |
| C. | It causes alcohol intolerance |
| D. | It acts on pancreas to stimulate release of insulin |
| Answer» C. It causes alcohol intolerance | |
| 469. |
All of the following are topically used sulphonamides except____________? |
| A. | Suphacetamide |
| B. | Sulphadiazine |
| C. | Silversulphadiazine |
| D. | Mafenide |
| Answer» C. Silversulphadiazine | |
| 470. |
All of the following are tocolytic except_______________? |
| A. | Isoxsuprine |
| B. | Natrexam |
| C. | Atosiban |
| D. | Ritodrine |
| Answer» C. Atosiban | |
| 471. |
All of the following are therapeutic uses of penicillin G, except_____________? |
| A. | Bacterial meningitis |
| B. | Rickettsial infection |
| C. | Syphilis |
| D. | Anthrax |
| Answer» C. Syphilis | |
| 472. |
All of the following are predominant arteriolar dilators except____________? |
| A. | Sodium Nitro prusside |
| B. | Hydrallazine |
| C. | Nifedipine |
| D. | Nitrates |
| Answer» E. | |
| 473. |
All of the following are inhalational anesthetic agents except_____________? |
| A. | Halothane |
| B. | Ketamine |
| C. | Enflurane |
| D. | Isoflurane |
| Answer» C. Enflurane | |
| 474. |
All of the following are features of streptomycin drug except______________? |
| A. | It is an antitubercular drug |
| B. | It can be given orally |
| C. | Effective against g-ve organisms |
| D. | None of the above |
| Answer» C. Effective against g-ve organisms | |
| 475. |
All of the following are endogenous corticosteriods released by all adrenal cortex EXCEPT______________? |
| A. | Cortisol |
| B. | Cortisone |
| C. | Dexamethsone |
| D. | Aldosterone |
| Answer» D. Aldosterone | |
| 476. |
All of the following antibacterial agents acts by inhibiting cell wall systhesis except________________? |
| A. | Carbapenems |
| B. | Monobactams |
| C. | Cephamycins |
| D. | Nitrofurantoins |
| Answer» E. | |
| 477. |
All NSAIDs block cycloxygenase and____________? |
| A. | Prostaglandin synthesis |
| B. | Ectoglandin synthesis |
| C. | Preglandin synthesis |
| D. | Costaglandin synthesis |
| Answer» B. Ectoglandin synthesis | |
| 478. |
All except one are centrally acting muscle blocks___________? |
| A. | Meprobamate |
| B. | Baclofen |
| C. | Diazepam |
| D. | Dantrolene sodium |
| Answer» E. | |
| 479. |
All are true of diazapenes except____________? |
| A. | Benzodiazepam is used in treatment of status epilepticus |
| B. | Benzodiazepam is used in the long term treatment of psychic disorders |
| C. | Clonazeppam is used in the treatment of petitmal epilepsy |
| D. | None of the above |
| Answer» C. Clonazeppam is used in the treatment of petitmal epilepsy | |
| 480. |
All are true about nitric oxide, EXCEPT____________? |
| A. | Regulates vasomotor tone |
| B. | Acts via cAMP |
| C. | Present in cigarette smoke |
| D. | It is important in penile erection |
| Answer» C. Present in cigarette smoke | |
| 481. |
All are true about metformin except_____________? |
| A. | Inhibits cellular respiration in mitochondria |
| B. | Excreted unchanged in urine |
| C. | Reduce hepatic glucose production |
| D. | Used in decompensated heart failure |
| Answer» E. | |
| 482. |
All are symptoms of opiate withdrawls except______________? |
| A. | Diarrhea |
| B. | Lacrimation |
| C. | Mydriasis |
| D. | Excessive speech |
| Answer» E. | |
| 483. |
All are macrolide antibiotics EXCEPT______________? |
| A. | Erythromycin |
| B. | Roxithromycin |
| C. | Neomycin |
| D. | Calithromycin |
| Answer» D. Calithromycin | |
| 484. |
AIDS is a disease if the immune system primarily affecting_____________? |
| A. | Granulocytes |
| B. | Immunoglobulins |
| C. | Opsonins |
| D. | T lymphocytes |
| Answer» E. | |
| 485. |
Agents/Drugs which help in rapid coagulation of Blood_______________? |
| A. | Astrigents |
| B. | Styptics |
| C. | Haemostatics |
| D. | All of the above |
| Answer» E. | |
| 486. |
Agents used by local application to control bleeding include all of the following except____________? |
| A. | Trannic acid |
| B. | Gelatin foam |
| C. | Adrenaline |
| D. | Vitamin-K |
| Answer» E. | |
| 487. |
Agent used in oral thrush_____________? |
| A. | Miconazole |
| B. | Clobetasol |
| C. | Clotrimazole |
| D. | Amoxycillin |
| Answer» D. Amoxycillin | |
| 488. |
After I.V administration of which of the following anesthetic agent, there is rapid recovery and less headedness ? |
| A. | Propofol |
| B. | Diazepam |
| C. | Droperidol |
| D. | Midazolam |
| Answer» B. Diazepam | |
| 489. |
Adrenaline is used in following EXCEPT______________? |
| A. | With xylocaine |
| B. | Post extraction socket |
| C. | Anaphylactin shock |
| D. | Angina in dental chair |
| E. | Both B & D |
| Answer» F. | |
| 490. |
Adrenaline can be given in all of the following situations except_______________? |
| A. | Asthma |
| B. | Myocardial infarction |
| C. | Shock |
| D. | Anaphylaxis |
| Answer» C. Shock | |
| 491. |
Acute Barbiturate poisoning results in_______________? |
| A. | Renal failure |
| B. | Liver failure |
| C. | Respiratory failure |
| D. | Convulsions |
| Answer» D. Convulsions | |
| 492. |
Activation of which of the following receptors would be expected to decrease anxiety_____________? |
| A. | Nicotinic cholinergic receptors |
| B. | Glutamate receptors |
| C. | GABA receptors |
| D. | Glucocorticoid receptors |
| Answer» D. Glucocorticoid receptors | |
| 493. |
Action of tannic acid is_______________? |
| A. | Blood coagulant |
| B. | Astrigent |
| C. | Styptic |
| D. | All of the following |
| Answer» C. Styptic | |
| 494. |
Action of Nitroglycerin is______________? |
| A. | Direct action on smooth muscle |
| B. | Slows SA node conductivity |
| C. | Blocks arrhythmia |
| D. | Increases perfusion to heart |
| Answer» B. Slows SA node conductivity | |
| 495. |
According to American society of Anesthetists, physical status scale Class III would be_____________? |
| A. | A normal healthy individual |
| B. | A patient with mild systemic disease |
| C. | A patient with severe systemic disease that it not in capacitating |
| D. | None of the above |
| Answer» D. None of the above | |
| 496. |
About heparin true is_____________? |
| A. | Mixture of sulphated polypeptide |
| B. | Known to cause idiopathic thrombocytosis |
| C. | Half-life is 90 min |
| D. | Decrease action of prothrombin III |
| Answer» D. Decrease action of prothrombin III | |
| 497. |
About articaine, all are true except_____________? |
| A. | Plasma half-life is 90 min |
| B. | Is amide which is metabolized in liver |
| C. | Mandibular infiltration is more effective than nerve block in mandibular molar teeth |
| D. | More breaks down causes more toxicity |
| Answer» B. Is amide which is metabolized in liver | |
| 498. |
A young lady talking rifampicin and OCP together become pregnant, most probable cause is____________? |
| A. | Rifampicin causes hepatic enzyme induction and increase metabolism of OCP’s |
| B. | Decreased absorption of OCP’s |
| C. | Obstruction of fallopian tubes |
| D. | Increase excretion of OCP’s |
| Answer» B. Decreased absorption of OCP’s | |
| 499. |
A side effect of an antithyroid drug is______________? |
| A. | Hypothyroidism |
| B. | Obesity |
| C. | Hypotension |
| D. | Tremors |
| Answer» B. Obesity | |
| 500. |
A prodrug is____________? |
| A. | The proto type member of a class of drugs |
| B. | The oldest member of a class of drugs |
| C. | An inactive drug that is transformed in the body to an active metabolite |
| D. | A drug that is stored in body tissues and is then gradually released in the direction |
| Answer» D. A drug that is stored in body tissues and is then gradually released in the direction | |