Drug therapy of tuberculosis differs from that of most other infections because:

Patients usually require therapy for a shorter period

Patients with tuberculosis have no symptoms

Mycobacteria have a cell wall that is resistant to penetration by anti-infective drugs

Anti-tuberculosis drugs are used extensively for treating active disease, not preventing it

Answer and Explanation

The Correct Answer is C

A. Patients usually require therapy for a shorter period: This is incorrect. TB therapy typically lasts for several months, longer than most other bacterial infections.
B. Patients with tuberculosis have no symptoms: This is incorrect. Many patients with active TB do exhibit symptoms such as cough, fever, night sweats, and weight loss.
C. Mycobacteria have a cell wall that is resistant to penetration by anti-infective drugs: This is correct. The mycobacterial cell wall is complex and impermeable, requiring specialized drugs and prolonged treatment.
D. Anti-tuberculosis drugs are used extensively for treating active disease, not preventing it: This is partially true, but TB drugs are also used for latent TB infection to prevent it from becoming active. Thus, it is not a primary reason differentiating TB therapy from other infections.

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Correct Answer is C

Explanation

A. She enjoys an alcoholic beverage twice a week: While alcohol can affect kidney function, occasional moderate intake might not be a major concern for vancomycin.
B. She remains outdoors for long periods of time: Sun exposure is not a major concern for vancomycin.
C. She only has one functioning kidney: This is the most significant factor. Vancomycin is primarily excreted by the kidneys. With only one functioning kidney, there's an increased risk of drug accumulation and potential toxicity if the dose is not adjusted for renal function.
D. She has hypertension: Hypertension itself might not significantly affect vancomycin use, although some medications for hypertension can interact with other drugs.

A. penicillin B. vancomycin C. Streptomycin D. kanamycin (Kantrex)

Correct Answer is B

Explanation

A. Penicillin: Penicillin is ineffective against MRSA because it's resistant to this class of antibiotics.
B. Vancomycin: This is a common antibiotic used to treat MRSA infections.
C. Streptomycin: While used for some bacterial infections, streptomycin is not typically the first choice for MRSA.
D. Kanamycin (Kantrex): Kanamycin can be an option for some MRSA strains, but vancomycin is often preferred

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Drug therapy of tuberculosis differs from that of most other infections because:

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Naxlex Comprehensive Predictor Exams

Correct Answer is C

Explanation

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Correct Answer is B

Explanation

The term "mutations" refers to:

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