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

Aztreonam spectrum activity: which organism group does it primarily cover?

Aztreonam is a monobactam that inhibits cell wall synthesis and has a narrow spectrum focused on Gram-negative aerobic bacteria. This means it effectively targets Gram-negative rods (including many Pseudomonas species) but does not work against Gram-positive cocci or anaerobic bacteria. The structure and binding properties of aztreonam limit its activity to Gram-negative aerobes, making it inactive against Gram-positives and anaerobes. Therefore, the statement that best describes its spectrum is that it covers Gram-negative aerobic bacteria and is inactive against Gram-positive and anaerobes.

Aztreonam is a monobactam that inhibits cell wall synthesis and has a narrow spectrum focused on Gram-negative aerobic bacteria. This means it effectively targets Gram-negative rods (including many Pseudomonas species) but does not work against Gram-positive cocci or anaerobic bacteria. The structure and binding properties of aztreonam limit its activity to Gram-negative aerobes, making it inactive against Gram-positives and anaerobes. Therefore, the statement that best describes its spectrum is that it covers Gram-negative aerobic bacteria and is inactive against Gram-positive and anaerobes.