Hospital-acquired UTI treatment goal?
Eradicate infection and prevent complications.
Bacteria classification by stain?
Gram-positive or gram-negative.
Bacterial classification by oxygen?
Aerobic or anaerobic.
Antibacterial classes?
Target specific bacterial structures/functions.
Beta-lactam spectrum?
Effective against gram-positive and some gram-negative bacteria.
Fluoroquinolone mechanism?
Inhibit DNA gyrase and topoisomerase IV.
Macrolide target?
Inhibit 50S ribosomal subunit.
Tetracycline target?
Inhibit 30S ribosomal subunit.
Clindamycin mechanism?
Bind to 50S ribosomal subunit, inhibit protein synthesis.
High CDI risk antibiotic?
Clindamycin.
Rifamycins effect on contraceptives?
Induce CYP3A4, risk of failure.
Beta-lactam allergy concern?
Risk of anaphylaxis, rash, serum sickness.
Metronidazole use?
Treat anaerobic infections; avoid alcohol.
Trimethoprim/Sulfamethoxazole contraindication?
Sulfonamide allergy, pregnancy, renal impairment.
Nitrofurantoin contraindication?
Late pregnancy, renal impairment.
Antibiotics and contraceptive efficacy?
Most do not affect, rifamycins do.
Answer 8 questions on Antimicrobial Strategies for Hospital UTI Treatment.
1. What is a primary objective in antimicrobial therapy for hospital-acquired urinary tract infections?
2. According to the classification criteria, bacteria are categorized as gram-positive or gram-negative based on what characteristic?
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