Widespread and prolonged use of an antibiotic leads to emergence of drug resistant strains because antibiotics: A. Induce mutation in the bacteria B. Promote conjugation among bacteria C. Allow resistant strains to propagate preferentially D. All of the above

Widespread and prolonged use of an antibiotic leads
to emergence of drug resistant strains because
antibiotics:
A. Induce mutation in the bacteria
B. Promote conjugation among bacteria
C. Allow resistant strains to propagate preferentially
D. All of the above
by

1 Answer

Answer :

C. Allow resistant strains to propagate preferentially
by

Related questions

Widespread and prolonged used of an antibiotic leads to emergence of drug resistant strains because antibiotics (a) Induce mutation in the bacteria (b) Promote conjugation among bacteria (c) Allow resistant strains to propagate preferentially (d) All of the above

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Last Answer : Ans: C

The following strategy will promote rather than curb emergence of antibiotic resistant micro-organisms: A. Whenever possible use broad spectrum antibiotics B. Prefer a narrow spectrum antibiotic to a broad spectrum one if both are equally effective C. Prefer short and intensive courses of antibiotics D. Use antibiotic combinations for prolonged therapy

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Last Answer : A. Whenever possible use broad spectrum antibiotics

Antimicrobial drug combinations are aimed at achieving the following except: A. Faster and more complete elimination of the infecting organism B. Treat infection when nature and sensitivity of the infecting organism is not definite C. Prevent emergence of resistant strains D. Prevent superinfection

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The main reason why antibodies could not solve all the problems of bacteria mediated disease is (a) decreased efficiency of the immune system (b) insensitivity of the individual following prolonged exposure to antibiotics (c) development of mutant strains resistant to antibodies (d) inactivation of antibiotics by bacterial enzymes.

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The most important mechanism of concurrent acquisition of multidrug resistance among bacteria is: A. Mutation B. Conjugation C. Transduction D. Transformation

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Aminoglycoside antibiotics exert the following action(s) on sensitive bacteria: A. Induce synthesis of defective proteins B. Make bacterial cell membrane more leaky C. Augment their own carrier mediated entry into the bacteria D. All of the above

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Superinfections are more common with: A. Use of narrow spectrum antibiotics B. Short courses of antibiotics C. Use of antibiotics that are completely absorbed from the small intestines D. Use of antibiotic combinations covering both gram positive and gram negative bacteria

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What is break point concentration of an antibiotic: A. Concentration at which the antibiotic lyses the bacteria B. Concentration of the antibiotic which demarkates between sensitive and resistant bacteria C. Concentration of the antibiotic which overcomes bacterial resistance D. Concentration at which a bacteriostatic antibiotic becomes bactericida

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Clinical applications of quinine include the following except: A. Uncomplicated chloroquine resistant malaria B. Cerebral malaria C. To induce abortion D. Nocturnal leg cramps

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The antibacterial action of aminoglycoside antibiotics is characterized by: A. Concentration dependent rate of bacterial cell killing B. Concentration dependent prolonged postantibiotic effect C. More pronounced bactericidal effect in anaerobic medium D. Both 'A' and 'B' are correct

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he multidrug therapy of leprosy is superior to monotherapy on the following account(s): A. It prevents emergence of dapsone resistance B. It is effective in cases with primary dapsone resistance C. It shortens the total duration of drug therapy and improves compliance D. All of the above

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Transfer of genetic information from one bacterium to another in the transduction process is through (a) bacteriophages released from the donor bacterial strain (b) another bacterium having special organ for conjugation (c) physical contact between donor and recipient strains (d) conjugation between opposite strain bacterium.

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What is true of drug therapy of typhoid fever: A. Combination of chloramphenicol with ciprofloxacin is superior to either drug alone B. Ceftriaxone (i.v.) is one of the fastest acting and most dependable treatment C. Prolonged treatment with chloramphenicol eradicates typhoid carrier state D. All of the above are correct

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Drug cumulation is the basis of organ toxicity of the following drug when used for prolonged periods: A. Prednisolone B. Chloroquine C. Aspirin D. Hydralazine

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Superinfections are more common with (a) Use of narrow spectrum antibiotics (b) Short courses of antibiotics (c) Use of antibiotics that are completely absorbed from the small intestines (d) Use of antibiotic combinations covering both gram positive and gram negative bacteria

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Prophylaxis antibiotic for anthrax is given to people with symptoms who have been in a defined “hot zone” for a period of a) 60 days. Those with symptoms who have been in the hot zone should be given 60 days of prophylactic antibiotic. The aim of prophylaxis is to assure that if spores were inhaled, bacteria will be killed immediately upon release from spores. Those who have symptoms of fever, cough, headache, chills, and especially evidence of mediastinal lymph node involvement should be treated with intravenous antibiotics and respiratory support, if needed.

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Appearance of antibiotic-resistant bacteria is an example of

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A medium would involve the addition of the antibiotic methicillin to identify methicillin-resistant bacteria. a. differential b. selective c. thioglycollate d. VBNC

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