Prepare for the Antibacterials (ABX) Exam. Study with flashcards and multiple-choice questions, each question comes with hints and explanations. Get ready to ace your test!

Multiple Choice

Ceftazidime is a member of which generation of cephalosporins?

Generations of cephalosporins reflect changes in antimicrobial spectrum, especially how they target Gram-negative bacteria and Pseudomonas, while Gram-positive activity tends to decrease with earlier generations and may partially recover in later ones. Ceftazidime is known for strong anti-pseudomonal activity and is classed with the third generation because it expands Gram-negative coverage (including Pseudomonas) compared with earlier generations but has relatively weak Gram-positive activity. It is not a first- or second-generation agent, which focus more on Gram-positive organisms, nor is it the fourth generation, which has even broader Gram-negative activity and different stability and Gram-positive considerations. So this agent fits the third generation.

Generations of cephalosporins reflect changes in antimicrobial spectrum, especially how they target Gram-negative bacteria and Pseudomonas, while Gram-positive activity tends to decrease with earlier generations and may partially recover in later ones. Ceftazidime is known for strong anti-pseudomonal activity and is classed with the third generation because it expands Gram-negative coverage (including Pseudomonas) compared with earlier generations but has relatively weak Gram-positive activity. It is not a first- or second-generation agent, which focus more on Gram-positive organisms, nor is it the fourth generation, which has even broader Gram-negative activity and different stability and Gram-positive considerations. So this agent fits the third generation.