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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

The bacterial resistance to tetracycline is due to___________?
A Alteration of drug binding sites
B Alteration of dehydrofolate reductase
C Inactivation of drug by enzymes
D Decreased uptake of drug by bacteria
Correct Answer: Inactivation of drug by enzymes
Mechanism of action of quinolones is______________?
A Inhibits DNA gyrase
B Inhibits Bacterial protein synthesis
C Inhibits bacterial cell wall synthesis
D Inhibits intake of folic acid
Correct Answer: Inhibits DNA gyrase
Tetracycline is contraindicated in_____________?
A Children
B Pregnancy
C Renal failure
D All of the above
Correct Answer: All of the above
The antibiotic of choice in patients sensitive to penicillin is___________?
A Erythromycin
B Streptomycin
C Tetracycline
D Chloramphenicol
Correct Answer: Erythromycin
Chloramphenicol can cause_____________?
A Staining of teeth
B Aplastic anaemia
C Bone marrow suppression
D B & C
Correct Answer: B & C
The therapeutic advantage that pencillin V has over pencillin G is____________?
A More reliable oral obsorption
B Greater resistance to pencillinase
C Slower renal excretion
D Broader antibacterial spectrum
Correct Answer: More reliable oral obsorption
Which of the following is primarily a bactericidal drug?
A Chloramphenicol
B Gentamicin
C Sulphadiazine
D Tetracycline
Correct Answer: Gentamicin
The most common side effect of the oral administration of ampicillin is_______________?
A Anaphylactic shock
B Diarrhoea
C Oral candidiasis
D Renal failure
Correct Answer: Diarrhoea
Indirect sympathomimetics can_______________?
A Penetrate the blood brain barrier
B Cause euphoria
C Both of the above
D None of the above
Correct Answer: Both of the above
The principle therapeutic action of the glucocorticoid is________________?
A Antidiuretic
B Antianabolic
C Anti-infective
D Anti-inflammatory
Correct Answer: Anti-inflammatory
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