medical MCQs – Page 462

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 Review each marked answer and report any item that may be outdated or unclear.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

9221. Which factor of the following contributes to short duration of anesthetic action of single dose thiopental_____________?
0

A. Rapid biotransformation

B. Ability to enter and leave brain tissue every rapidly

C. Rapid accumulation in body fat

D. High lipid solubility

9222. The principle central action of caffeine is on the________________?
0

A. Spinal cord

B. Hypothalamus

C. Corpus callosum

D. Cerebral cortex

9223. Which of the following is not true for histamine ?
0

A. Causes pain when injected subcutaneously

B. Causes arteriolar dialation

C. Is released following injury and in certain allergic responses

D. causes bronchodialtion

9224. Which among the following anti-histamines, is Least likely to cause sedation_____________?
0

A. Hydroxyzine

B. Diphenhydramine

C. Promethazine

D. Loratidine

9225. Which of the following sympathominetic agents is the most bronchodilator_____________?
0

A. Amphetamine

B. Isoproterenol

C. Phenylephrine

D. Nor epinephrine

9226. A 50 year old female with end stage renal disease (ESRD) develops pulmonary tuberculosis. Which one of the following drugs should be used in a reduced dose ?
0

A. Pyrazamide

B. Rifampicin

C. Isoniazide

D. Ethambutol

9227. All of the following are vasodilators except______________?
0

A. Procaine

B. Cyclopropane

C. Etomidate

D. Cocaine

9228. Drugs like barbiturates precipitate symptoms of prophyria because______________?
0

A. They inhibit ALA synthase

B. They depress ALA synthase

C. They induce heme oxygenase

D. They inhibit heme oxygenase

9229. Which of the following anti inflammatory drug is a COX-2 inhibitor_____________?
0

A. Rofecoxib

B. Aspirin

C. Sulidec

D. Ketoprofen

9230. Which of the following drugs is used in the morning sickness_____________?
0

A. Atropine

B. Chlorpromazine

C. Hyoscine

D. Adrenalin

9231. About articaine, all are true except_____________?
0

A. More breaks down causes more toxicity

B. Mandibular infiltration is more effective than nerve block in mandibular molar teeth

C. Is amide which is metabolized in liver

D. Plasma half-life is 90 min

9232. The intramuscular administration of 0.6 mg of atropine sulphate to a 50 kg adult may produce all of the following effects except________________?
0

A. Decreased salivation

B. Decreased sweating

C. Bradycardia

D. Mydriasis

9233. Dissociative Sedation and analgesia described by Robert and Rosebaum in 1971 is____________?
0

A. 20 to 30% N20

B. 50 to 70% N20

C. 5 to 20% N20

D. 30 to 50% N20

9234. Drug which causes gingival hyperplasia_____________?
0

A. Nifedipine

B. Erythromycin

C. Cyclosporin

D. Aspirin

E. Both A & C

9235. Which one of the anti hypertensives is contraindicated in pregnancy ?
0

A. Nifedipine

B. a-Methldopa

C. Enlapril

D. Hydralazine

9236. All of the following are inhalational anesthetic agents except_____________?
0

A. Ketamine

B. Enflurane

C. Halothane

D. Isoflurane

9237. Blockers are used in all except_____________?
0

A. Thyrotoxcosis

B. Phenochyromocytoma

C. Secondary shock

D. Migraine

9238. Secretory immunoglobulin is_____________?
0

A. IgE

B. IgA

C. IgG

D. IgM

9239. Teratogenicity is_______________?
0

A. Drug dependence

B. Carcinoma forming tendency

C. Intolerance to a drug

D. Fetal malformation

9240. Methemoglobinemia is a complication following the administration of_____________?
0

A. Lignocaine

B. Prilocaine

C. Procaine

D. Benzacaine

Previous Next

Showing 9221 to 9240 of 10266 mcqs