medical MCQs – Page 449

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 Review each marked answer and report any item that may be outdated or unclear.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

8961. In non zinc containing dental amalgam alloy the percentage of zinc present is______________?
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A. Less than 0.01%

B. None of the above

C. Less than 0.1%

D. Less than 0.02%

8962. Amalgam achieves 70% of the strength by____________?
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A. 4 hours

B. 16 hours

C. hours

D. 8 hours

8963. Co-efficient of Thermal exansion of amalgam is______________?
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A. 6.6 a (ppm k-1)

B. 11.4 a (ppm k-1)

C. 25.0 a (ppm k-1)

D. 14.0 a (ppm k-1)

8964. For dental amalgam, the elastic modulus and tensile strength is______________?
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A. 350 Gpa and 10 120 Mpa

B. 40 Gpa and 60 100 Mpa

C. 21 Gpa and 27 55 Mpa

D. 360 Gpa and 125 130 Mpa

8965. The cavity varnish applied reduces post operative sensitivity in amalgam restoration by____________?
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A. Decreasing conduction of heat to pulp

B. Minimize marginal leakage around restoration

C. By altering the chemical composition of restoration materials

D. By preventing penetration of corrosion products into the dentinal tubules

8966. Which of the following is most important in strength ZOE_____________?
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A. Speed of mixing

B. Liquid powder ratio

C. Addition of few drops of water

D. Temperature of mixing stab

8967. Which of the following cements have anti cariogenic properly________________?
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A. Calcium Hydroxide

B. Zinc silicophosphate

C. Zinc phosphate

D. ZOE

8968. Antagonist of morphine is_______________?
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A. Nalpuphine

B. Methadine

C. Naloxone

D. Nalosphine

8969. All are true of diazapenes except____________?
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A. Benzodiazepam is used in treatment of status epilepticus

B. Benzodiazepam is used in the long term treatment of psychic disorders

C. None of the above

D. Clonazeppam is used in the treatment of petitmal epilepsy

8970. Folic acid deficiency occurs in______________?
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A. Cyclosporine

B. Chloromphenicol

C. Aspirin

D. Phenytoin

8971. Shortest acting opioid analgesic is______________?
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A. Sufentanil

B. Fentanyl

C. Morphine

D. Remifentanil

8972. Which one of the following is NOT an ergot alkaloids_____________?
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A. Ketanserin

B. Lysergic acid diethylamide (LSD)

C. Bromocriptine

D. Methysergide

8973. All of the following statements about opioids is correct except_____________?
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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

8974. True about use of midazolam over diazepam is sedation in all except ?
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A. More potent than diazepam

B. Binds to benzodiazepine receptors with 3-4 time more avidly

C. Less thrombophlebitis due to low solubility in blond

D. More plasma binding and less toxicity

8975. Quinine is obtained from CINCHONA________________?
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A. Bark

B. Leaves

C. Seed capsule

D. Root

8976. The muscle relaxant effect of succinylcholine lasts for______________?
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A. 2 min

B. 10 min

C. 3-5 min

D. 1 min

8977. Which among the following Not a pharmacological action of opioids______________?
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A. Miosis

B. Anti-emesis

C. Truncal rigidity

D. Cough suppression

8978. Best and most effective drug to control convulsions in toxicity cases is______________?
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A. Carbemezipine

B. Phenytoin

C. Diazepam

D. Phenobarbitone

8979. Ibuprofen is contraindicated in_______________?
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A. Patient having bronchitis

B. patients having fever

C. patients having asthma

D. patients having amoebic dysentery

8980. The most prominent toxic effect associated with acetominophen use is______________?
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A. Haemorrhage

B. Gastric Ulceration

C. Respiratory alkalosis

D. Hepatic necrosis

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