Aminoglycosides are effective against which strain of bacteria?
Viral infections
Gram-positive bacteria
Fungal infections
Gram-negative bacteria
The Correct Answer is D
A. Aminoglycosides are ineffective against viral infections, as they target bacterial pathogens.
B. While some aminoglycosides may have activity against certain Gram-positive bacteria, they are mainly used for Gram-negative infections.
C. Fungal infections require antifungal agents, not aminoglycosides.
D. Aminoglycosides are primarily effective against Gram-negative bacteria, making them valuable in treating serious infections caused by these organisms.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. This option misrepresents critical concentration; it focuses on absorption rather than therapeutic efficacy.
B. The critical concentration refers to the minimum concentration of a medication in the blood needed to achieve the desired therapeutic effect. This concentration is essential to ensure that the medication is effective in treating the condition.
C. While the maximum concentration can relate to safety, critical concentration specifically concerns the minimum required for effectiveness.
D. This choice suggests an optimal concentration, which is different from the minimum concentration needed to achieve therapeutic effects.
Correct Answer is C
Explanation
A. Inhibition of protein synthesis is the mechanism of action for other classes of antibiotics, such as tetracyclines and macrolides.
B. Inhibition of DNA replication is characteristic of fluoroquinolones.
C. Cephalosporins work by inhibiting cell wall synthesis, leading to bacterial lysis and death. This mechanism is critical for their effectiveness against a wide range of bacterial infections.
D. Inhibition of folic acid synthesis is primarily associated with sulfonamides.
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