medical MCQs – Page 453

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

9041. According to American society of Anesthetists, physical status scale Class III would be_____________?
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A. A normal healthy individual

B. A patient with severe systemic disease that it not in capacitating

C. A patient with mild systemic disease

D. None of the above

9042. Idiosyncracy is known as to have_____________?
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A. Genetic component

B. Nutritional component

C. Psychological component

D. Psysiological component

9043. The ratio of the median lethal dose of the median effective dose is the_____________?
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A. Morbidity index

B. Therapeutic index

C. Moratality index

D. Anesthetic ratio

9044. Which of the following is not an antimigraine agent ?
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A. Flunarizine

B. Propanolol

C. Divalprox sodium

D. Zonisamide

9045. Which of the following is a non steroidal anti inflammatory agent with a tendency to produce blood dyscrasias ?
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A. Ibuprofen

B. Aspirin

C. Indomethacin

D. B & C

9046. Drug which crosses placental barrier is____________?
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A. All of the above

B. phenytoin

C. Corticosteroids

D. Diazepam

9047. Digitalis induced automaticity is enhanced by______________?
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A. Low K+ levels

B. High K+ levels

C. High Na+ levels

D. High Ca2+ levels

9048. Which of the following is NOT a systemic effect of corticosteroid ?
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A. Increase in total amount of circulatory neutrophils

B. Increase in IL-1

C. Anti-inflammatory effect is increased

D. Inhibit phospholipase A2

9049. Hallucinations are seen after ________ anesthesia?
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A. Thiopentone

B. Ketamine

C. Nitrous oxide

D. Tentanyl

9050. A patient on 300 mg of aspirin will show all the following except________________?
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A. Irreversible inhibition of cyclooxygenase path way

B. Inhibition of thromboxane TXA2

C. Prolonged bleeding time

D. Inhibition of prostaglandin PGI2

9051. Following drug which undergo most of its metabolism presystemically______________?
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A. Paracetamol

B. Propranolol

C. Verapamil

D. Salbutamol

9052. The dose of a drug required to produce a specified effect in 50% of the population is_____________?
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A. Td50

B. Md50

C. Ed50

D. Ld50

9053. Km value indicates______________?
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A. Affinity

B. Purity of Enzyme

C. Physiological role

D. Half life enzymes drug complex

9054. Which of the following statements regarding nitroglycerin is true ?
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A. Poorly suited for oral administration

B. High membrane penetrability

C. All of the above

D. The effect is more pronounced in venous

9055. About heparin true is_____________?
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A. Decrease action of prothrombin III

B. Half-life is 90 min

C. Known to cause idiopathic thrombocytosis

D. Mixture of sulphated polypeptide

9056. Sildenafil is inhibitor of_______________?
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A. PDE-5

B. cAMP

C. cGMP

D. PGI2

9057. Mandibular sublaxation is associated with________________?
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A. Ciprofloxacin

B. Prochlorperazine

C. Diphenhydramine

D. Carbamezapine

9058. Gastric secretion has been shown to be most effectively reduced with the use of___________?
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A. Adrenal steroids

B. H1 histamine receptor antagonist

C. Anticholinergic

D. H2 histamine receptor antagonist

9059. Adrenaline can be given in all of the following situations except_______________?
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A. Shock

B. Myocardial infarction

C. Anaphylaxis

D. Asthma

9060. When a drug creates an effect that is unpredictable and unique it is termed as____________?
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A. Idiosyncratic effect

B. Toxicity effect

C. Drug on Drug effect

D. Side effect

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