Non-faecium VRE
Non-faecium VRE has a diabetic foot osteomyelitis . Blood cultures grow vancomycin-resistant Enterococcus gallinarum which is susceptible to ampicillin. The patient is on empiric vancomycin and piperacillin-tazobactam . Should vancomycin be changed to daptomycin for this VRE? How did others respond? Reveal the answer Best Answer No Explanation: Enterococcus gallinarum is intrinsically resistant to …
Chelation with Fluoroquinolones and Tetracyclines
Penicillins for MSSA
Penicillins for MSSA has pneumonia . A sputum culture grows methicillin-susceptible S. aureus susceptible to oxacillin, amoxicillin-clavulanate, and cefazolin. Oral amoxicillin is initially ordered. Is this appropriate? A. YesB. No How did others respond? Reveal the answer Best Answer No Explanation: MSSA commonly makes a penicillinase and should be considered resistant to penicillin, amoxicillin, and …
Species Spotlight: Citrobacter koseri & Citrobacter amalonaticus
Ceftriaxone Guided IV to PO
Ceftriaxone Guided IV to PO is admitted with pyelonephritis. Blood and urine cultures grow E. coli with the below susceptibilities. They have a QTc of 502 ms and a sulfa allergy. Amox – R Amox-clav – R Cefazolin – R Ceftriaxone – S Ciprofloxacin – S TMP-SMX – S Which of the following is best …
Don’t Let the Bug Beat You: E. casseliflavus and E. gallinarum
Cephalosporins for VGS
Cephalosporins for VGS is admitted with a dental abscess. Blood cultures grow Viridans Group Streptococcus (VGS) that is susceptible to penicillin. Is cephalexin and metronidazole a good oral stepdown option to complete therapy? YesNo How did others respond? Reveal the answer Best Answer No Explanation: Cephalexin has unreliable activity against VGS. Penicillin activity against VGS …
Penicillins for Staphylococcus aureus: Aye or Nay?
Cidal vs Static
Cidal vs Static A is admitted to the ICU for community-acquired pneumonia . They have a history of MRSA and a vancomycin allergy. Should linezolid be avoided because it is bacteriostatic? A. YesB. No How did others respond? Reveal the answer Best Answer No Explanation: Bacteriostatic and bactericidal are not clinically relevant terms and …
