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What is the difference between a broad-spectrum antibiotic and a narrow-spectrum antibiotic?

A. A broad-spectrum antibiotic is effective against a wide range of microorganisms, while a narrow-spectrum antibiotic is effective against only a few organisms.

B. A broad-spectrum antibiotic is effective against only a few microorganisms, while a narrow-spectrum antibiotic is effective against a wide range of microorganisms.

C. Broad-spectrum antibiotics will cover all bacteria that you will come across, and you will never need to use narrow-spectrum antibiotics.

D. There are no differences.


Sagot :

Final answer:

Broad spectrum antibiotics cover a wide range of bacteria, while narrow-spectrum antibiotics target specific types. Choosing between them depends on the infection type and the immune status of the patient.


Explanation:

Broad spectrum antibiotics are effective against a wide range of bacteria, including both gram-positive and gram-negative species. They are used for serious systemic infections when the causative agent is unknown or when narrow-spectrum antibiotics fail. In contrast, narrow-spectrum antibiotics only target specific subsets of bacterial pathogens, such as either gram-positive or gram-negative bacteria.


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