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What does the antimicrobial spectrum of an antibiotic refer to?
What does the antimicrobial spectrum of an antibiotic refer to?
- The range of microorganisms it can kill or inhibit (correct)
- The chemical composition of the antibiotic
- The method of antibiotic administration
- The cost of the antibiotic
How are broad-spectrum antibiotics characterized?
How are broad-spectrum antibiotics characterized?
- They can kill or inhibit a wide range of microorganisms (correct)
- They can kill or inhibit Gram positive bacteria and some Gram negative bacteria
- They can only kill or inhibit limited species of bacteria
- They have low propensity to induce bacterial resistance
What is a significance of narrow-spectrum antibiotics?
What is a significance of narrow-spectrum antibiotics?
- They can induce the development of bacterial resistance
- They can promote the emergency of multidrug-resistant organisms
- They can cause off-target effects due to dysbiosis
- They have low propensity to induce bacterial resistance (correct)
How is the antimicrobial spectrum of an antibiotic determined?
How is the antimicrobial spectrum of an antibiotic determined?
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What is a potential consequence of indiscriminate use of broad-spectrum antibiotics?
What is a potential consequence of indiscriminate use of broad-spectrum antibiotics?
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Study Notes
Antimicrobial Spectrum of Antibiotics
- The antimicrobial spectrum of an antibiotic refers to the range of microorganisms that are susceptible to its antibacterial activity.
Characteristics of Broad-Spectrum Antibiotics
- Broad-spectrum antibiotics are characterized by their ability to inhibit the growth of a wide range of microorganisms, including Gram-positive and Gram-negative bacteria, as well as some fungi and protozoa.
Significance of Narrow-Spectrum Antibiotics
- Narrow-spectrum antibiotics are important because they allow for targeted treatment of specific infections, reducing the risk of disrupting the natural balance of microbial flora in the body.
Determination of Antimicrobial Spectrum
- The antimicrobial spectrum of an antibiotic is determined through laboratory tests, such as the Kirby-Bauer disk diffusion test, which measures the zone of inhibition around an antibiotic disk.
Consequences of Indiscriminate Use of Broad-Spectrum Antibiotics
- The indiscriminate use of broad-spectrum antibiotics can lead to the development of antibiotic-resistant microorganisms, making them less effective against future infections.
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Description
Test your knowledge of antibiotic spectrum with this quiz. Explore the differences between broad-spectrum, extended-spectrum, and narrow-spectrum antibiotics and understand their varying abilities to combat different types of microorganisms.
