What is the mechanism of action used by cephalosporins in the treatment of bacterial infections?
inhibition of protein synth
Inhibition of DNA replication
Inhibition of cell wall synthesis
Inhibition of folic acid synthesis
The Correct Answer is C
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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Related Questions
Correct Answer is C
Explanation
A. Rash is generally a mild adverse effect and does not indicate a severe reaction.
B. Nausea and vomiting are common side effects but not classified as severe reactions.
C. Ototoxicity is a severe adverse reaction associated with aminoglycoside therapy, potentially leading to hearing loss and balance issues. Monitoring for this side effect is crucial during treatment.
D. Headache can occur but is not considered a severe adverse reaction compared to ototoxicity.
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.
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