]> 2026-07-31T09:40:51+00:00 WBR0853 0 en IV nafcillin for 4-6 weeks Correct nafcillin/oxacillin is the antibiotic of choice to start with as most of the causative organism is Staphylococcus aureus or coagulasenegative (methicillin-sensitive) Staphylococci IV Vancomycin for 4-6 weeks Incorrect We don’t start vancomycin unless the result of the culture denotes methicillin-resistant staphylococci or Penicillin-resistant S. pneumoniae I.V Ceftazidime for 4-6 weeks Incorrect Ceftazidime is the drug of choice if the blood culture reveals Serratia species or Pseudomonas aeruginosa I V Clindamycin for 4-6 weeks Incorrect Clindamycin is used when anaerobes is the causative organism I.V Ciprofloxacin for 4-6 weeks Incorrect Ciprofloxacin is used with Enteric gram-negative rods Emergency Room An 11 year-old boy brought to the ED by his mother complaining of progressive severe pain, and swelling in his left foot. The mother said that she used some analgesic medications that were prescribed to him 2 weeks ago for fever after he injured himself during playing, but neither the pain nor the fever subsided. He is a diabetic on insulin, taking no other medications. On examination, the patient is feverish with temperature 39 C (102 F), heart rate 100/min, blood pressure 140/80 mmHg, and respiratory rate of 22/min. His left foot is severely tender, red, and hot, with decreased range of motion on examination. You ordered x-ray which turned back with no pathology. You ordered a blood culture. What is the best antibiotic treatment of choice in this patient? A Infectious Disease 2020-10-28T01:53:28Z 2459150.5787963 WBR0853