medical MCQs – Page 477

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 Review each marked answer and report any item that may be outdated or unclear.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

9521. True about aminoglycoside is all except______________?
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A. Excreted unchanged in urine

B. Teratogenic

C. Are bacteriostatic

D. Distributed only extracellularly

9522. Which of the following is beta-lactam antibiotic ?
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A. Carbamide

B. Sulphonamide

C. Ofloxacin

D. Cephalosporins

9523. Short-acting non-depolarising muscle relaxant is________________?
0

A. Succinylcholine

B. Decamethonium

C. Pancuronium

D. Mivacurum

9524. Which drug can be safely used in lactating mothers ?
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A. Ampicillin

B. Erythromycin

C. Ciprofloxacin

D. Chloramphenicol

9525. Succinylcholine prevents bronchospasm by______________?
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A. Centrally acting muscle relaxation

B. Dual action

C. Direct muscle relaxation

D. Depolarising block

9526. Indirect sympathomimetics can_______________?
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A. Penetrate the blood brain barrier

B. Cause euphoria

C. Both of the above

D. None of the above

9527. All are true about nitric oxide, EXCEPT____________?
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A. Present in cigarette smoke

B. Acts via cAMP

C. Regulates vasomotor tone

D. It is important in penile erection

9528. Drug to be avoided in a patient allergic to penicillin is_____________?
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A. Sulphonamide

B. Ampicillin

C. Tetracycline

D. Cholarmphenicol

9529. Mechanism of action of nifidipine is_____________?
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A. It has a prominent smooth muscle relaxant action causes arteolar dilation leading to fall in blood pressure

B. Decreased cardiac output thus decreasing load on myocardium

C. Nifidipine depresses the SA node thus decreasing mycocoardial excitability

D. Mainly depression of A-V conduction

9530. Which of the following antibiotics is not used in the treatment of infectious mononucleosis ?
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A. Ampicillin

B. Gentamycin

C. Erythromycin

D. Ciprofloxacin

9531. Heparin, apart from releasing lypoprotein lipase in the blood exerts its anti-coagulant action by____________?
0

A. Inhibiting thrombin synthesis

B. Inhibiting prothrombin synthesis

C. Inhibiting fibrinogen synthesis

D. Binding to calcium

9532. Which of the following is correct ?
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A. All of the above

B. Pyknosis shrinkage of nucleus

C. Karyolysis Dissolution of nucleus

D. Karyorrhexis fragmentation of nucleus

9533. Which of the following statement is _____________?
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A. High density lipoproteins have protective role in atherosclerosis

B. Poly unsaturated fats lowers plasma cholesterol levels

C. Low density lipoproteins has maximum association with atherosclerosis

D. HDL contains the highest cholesterol content

9534. Granuloma is characterized by all of the following except______________?
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A. A reaction of acute inflammation

B. A specific type of chronic inflammation

C. Initiated by a number of infectious and non infectious agents

D. Accumulation of modified macrophages

9535. Pale infarcts are seen in all of the following except______________?
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A. Spleen

B. Lung

C. Liver

D. Kidney

9536. The most common site of metastases of osteosarcoma is_____________?
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A. Spleen

B. Lymph nodes

C. Lung

D. Liver

9537. The most common site of origin for venous thrombi leading to pulmonary embolism is_____________?
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A. Deep leg veins

B. Portal vein

C. Ascending oaorta

D. Right atrium

9538. The predominant cells after 48 hours of inflammation are_____________?
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A. A and B

B. Neutrophils

C. Macrophage

D. Monocytes

9539. Virchow Lepra cells are seen in___________?
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A. lepromatous leprosy

B. Ideterminate leprosy

C. Tuberculoid leprosy

D. Borderline tuberculoid leprosy

9540. IN fanconi anemia there is a_______________?
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A. No increased risk of Sq. cell carcinoma

B. Deficiency of copper

C. Mutation of DNA repair gene

D. Purely nutritional disorder etiology

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