QTc Prolonging Antibiotics A 77 year old is admitted with an acute exacerbation of COPD A recent EKG shows her baseline QTc interval is 504 ms. Which antibiotic will NOT further prolong her QTc? A. MoxifloxacinB. DoxycyclineC. Azithromycin How did others respond? Reveal the answer Best Answer Doxycycline Explanation: Fluoroquinolone and macrolide antibiotics both can …
Cephalexin Dosing in Cystitis A with dysuria but no fever or flank pain is prescribed cephalexin 500 mg 2x daily. Drug references suggest up to 4x daily dosing. Should the frequency be changed? Yes, increase frequencyNo, keep frequency How did others respond? Reveal the answer Best Answer No, keep frequency Explanation: Pharmacokinetic data shows that …
Three versus Five Days of Azithromycin A is admitted with CAP. She is started on ceftriaxone and azithromycin 500 mg PO every 24 hours x days. A colleague asks why not use “Z-pak” dosing (500 mg x 1 then 250 mg every 24 hours x days total) What do you tell them? A. Dosing is …
Discordant Results : Amoxicillin-Clavulanate and Ampicillin-Sulbactam A with a drained intra-abdominal abscess was sent with amoxicillin/clavulanate An operative culture grows E. coli with this susceptibility: Ampicillin = RAmoxicillin/clavulanate = SAmpicillin/sulbactam = R Should antibiotics be changed? How did others respond? Reveal the answer Best Answer No, therapy is active ✅ Explanation: Discordant susceptibility between …
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Anaerobes in Aspiration Pneumonia A is admitted to the with fever and hypoxia with a new infiltrate on Staff at his nursing home note concern for aspiration. The patient is currently on ceftriaxone and azithromycin. Is empiric anaerobic coverage needed? Yes! Cover anaerobesNo, not needed How did others respond? Reveal the answer Best Answer No, …
Empiric Antibiotics – Antibiogram A with pyelonephritis has a urine culture growing E. coli A local antibiogram shows the following activity against E. coli A. Ampicillin 54%B. Cefazolin 70%C. Ceftriaxone 90%D. Meropenem 98% Which antibiotic is OPTIMAL for empiric coverage of E. coli? How did others respond? Reveal the answer Best Answer Ceftriaxone Explanation: All …
CAP Antibiotic Spectrum A 44 year old is seen in clinic for a cough x 10 days & shortness of breath on exertion. He is diagnosed with community-acquired pneumonia and sent with amoxicillin What common cause of CAP is covered with his current therapy? A. M. pneumoniaeB. S. pneumoniaeC. C. pneumoniaeD. Legionella spp. How did others …
Group A Strep Testing A 2 year old presents to clinic with cough + sore throat + x 2 days. Her tonsils are red and swollen without exudate. The does NOT test for Group A Streptococcus. Is this appropriate? A. Yes, appropriateB. No, test for GASC. A peds question? HELP How did others respond? Reveal …
Uncomplicated diverticulitis A 35 year old presents to the ER with abdominal pain and diarrhea x 2 days. A CT shows diverticulitis but no abscess or other complications and WBC = 7. They are stable for discharge . Should antibiotics be prescribed? Yes or No How did others respond? Reveal the answer Best Answer No …
Most Active Antibiotic A 77 year old with a chronic urinary catheter has a mechanical fall and is in the for a broken hip. A urine culture is collected and grows Candida albicans. What is the best treatment option? A. FluconazoleB. MicafunginC. Amphotericin BD. Hold Antifungals How did others respond? Reveal the answer Best Answer …