Antibiotics

Which penicillin is the drug of choice for syphilis, and why should it not be given intravenously?

Which of the following antibiotics does NOT have antipseudomonal activity?

Which antibiotic is most appropriate for a 42-year-old man with suspected leptospirosis who cannot tolerate doxycycline and penicillin is unavailable?

Based on the antimicrobial activity chart, which antibiotic combination shows activity against both ESBL-producing organisms and Pseudomonas aeruginosa (MDR/XDR)?

Resistance to which drug requires further testing before using clindamycin?

What is the MOST likely cause of the patient's myoclonus and altered mental status after starting cefepime?

Based on the antibiotic spectrum chart, which antibiotics cover both MRSA and Pseudomonas?

A 42-year-old woman with a UTI is not improving on azithromycin. What is the most appropriate next step in management?

A 72-year-old woman with diabetes and UTI due to Enterobacter is sensitive to imipenem, colistin, and aztreonam-avibactam. Which is the best antibiotic to use?

Which antibiotic is MOST likely responsible for the patient's symptoms of burning sensation while eating, discoloration of the tongue, and pallor?

What is the best next step in management for a patient with pan-sensitive E. coli urosepsis who is now conscious and afebrile after 4 days of meropenem?

Based on the systematic review and meta-analysis, what is the approximate percentage risk reduction in recurrent UTIs with cranberry products?

Before starting cotrimoxazole in a patient with no documented allergy history, what is the MOST important step?

Which of the following are accepted indications to start antibiotics in acute sinusitis?

What is the MOST appropriate next step for a patient with Salmonella Typhi sensitive to ceftriaxone who is clinically improving but still has fever on day 5 of ceftriaxone?

Which pattern of fever is characteristic of typhoid, as shown in the graph?

Based on the data provided, which antibiotic regimen leads to a faster defervescence in typhoid fever: ceftriaxone alone or ceftriaxone with azithromycin?

Which bacteria should NOT be treated in a patient with positive GI PCR panel for Salmonella, Shigella, Campylobacter jejuni, Yersinia enterocolitica, and Shiga toxin–producing E. coli (STEC)?

A 29-year-old woman is screened because her husband tested positive for syphilis. She has no symptoms, ulcers, rash, or neurological signs. VDRL is 1:4 and TPHA is positive. She has no penicillin allergy, and her last menstrual period was 45 days ago. Which penicillin regimen is most appropriate?