Which of the following is NOT a second-line injectable agent used for MDR-TB?

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Multiple Choice

Which of the following is NOT a second-line injectable agent used for MDR-TB?

Explanation:
The concept being tested is which drugs are classified as second-line injectable agents for MDR-TB. Among the options, streptomycin, kanamycin, and capreomycin are all injectable antibiotics used in MDR-TB regimens. Ethambutol, however, is a first-line anti-TB drug that is given orally and is not an injectable. It is not categorized as a second-line injectable, though it can be used in MDR-TB if the strain is susceptible. So the item that does not fit as a second-line injectable is ethambutol.

The concept being tested is which drugs are classified as second-line injectable agents for MDR-TB. Among the options, streptomycin, kanamycin, and capreomycin are all injectable antibiotics used in MDR-TB regimens. Ethambutol, however, is a first-line anti-TB drug that is given orally and is not an injectable. It is not categorized as a second-line injectable, though it can be used in MDR-TB if the strain is susceptible. So the item that does not fit as a second-line injectable is ethambutol.

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