Antibiotics for Skin Infections
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Questions and Answers

Which organisms are commonly associated with infected ulcers that have been previously treated with antibiotics?

  • Clostridium perfringens, E.coli, Streptococcus pneumoniae
  • S.aureus, beta-hemolytic streptococci, Enterobacteriaceae (correct)
  • Staphylococcus epidermidis, Enterococcus, Pseudomonas
  • Fusobacterium, Streptococcus agalactiae, Neisseria
  • What imaging technique is recommended for the detection of soft-tissue lesions and osteomyelitis?

  • X-ray
  • MRI (correct)
  • CT scan
  • Ultrasound
  • What factors influence the duration of treatment for diabetic foot infections?

  • Type of antibiotics used and duration of wound care
  • Presence of comorbid conditions and patient adherence
  • Initial infection severity and patient age
  • Presence of adequate blood supply and osteomyelitis (correct)
  • What is the best approach to confirm a diagnosis of deep foot-space infection?

    <p>Careful probing of the ulcer floor and considering imaging</p> Signup and view all the answers

    What characteristic of discharge is indicative of the presence of anaerobes in diabetic foot infections?

    <p>Foul-smelling or putrid discharge</p> Signup and view all the answers

    What is the appropriate treatment for a patient with a severe penicillin allergy who may have cellulitis caused by MRSA?

    <p>Ciprofloxacin + Clindamycin OR Aztreonam + Clindamycin</p> Signup and view all the answers

    Which of the following statements regarding the treatment of cellulitis is accurate?

    <p>Elevating the affected extremity is essential in managing cellulitis.</p> Signup and view all the answers

    What should be considered for a patient presenting with bullae and ulcers after exposure to seawater?

    <p>Infection by Vibrio vulnificus.</p> Signup and view all the answers

    Which treatment is recommended for dog or cat bites when penicillin is contraindicated?

    <p>Ciprofloxacin + Clindamycin.</p> Signup and view all the answers

    Which of the following statements about antibiotics used for cellulitis is incorrect?

    <p>Daptomycin is effective against gram-negative organisms.</p> Signup and view all the answers

    What is the most common etiology of cellulitis with purulent drainage?

    <p>S.aureus and group A streptococci</p> Signup and view all the answers

    Which of the following is an appropriate oral regimen for treating cellulitis?

    <p>Doxycycline 100 mg PO BID plus Cephalexin 500 mg PO QID</p> Signup and view all the answers

    Which treatment is indicated for mild cellulitis?

    <p>Oral Amoxicillin/clavulanate or Ciprofloxacin</p> Signup and view all the answers

    What is the main purpose of combining TMP/SMX with Amoxicillin in treating cellulitis?

    <p>To improve effectiveness against group A streptococci</p> Signup and view all the answers

    When should surgical treatment be considered for an abscess?

    <p>In cases of gangrene or severe systemic symptoms</p> Signup and view all the answers

    Which antibiotic is typically used for the treatment of moderate to severe cellulitis?

    <p>Clindamycin 600 mg IV q8h</p> Signup and view all the answers

    What is the treatment recommendation for Impetigo?

    <p>Warm water soak and oral therapy</p> Signup and view all the answers

    What would be a reason to choose oral therapy over IV therapy for cellulitis treatment?

    <p>Patient shows improvement and has mild disease</p> Signup and view all the answers

    What is the preferred treatment for a patient with confirmed beta-hemolytic streptococci and no penicillin allergy?

    <p>Penicillin G PLUS Clindamycin</p> Signup and view all the answers

    Which condition is characterized by the infection of the subcutaneous tissue leading to progressive destruction?

    <p>Fasciitis</p> Signup and view all the answers

    Which type of necrotizing fasciitis is predominantly caused by Group A streptococci?

    <p>Type 2</p> Signup and view all the answers

    What is considered a typical risk factor for necrotizing fasciitis?

    <p>Obesity</p> Signup and view all the answers

    What type of imaging can aid in the diagnosis of necrotizing fasciitis but should not replace surgical exploration if suspicion is high?

    <p>CT scan</p> Signup and view all the answers

    Which antibiotic combination is recommended for a patient with penicillin allergy and suspected necrotizing fasciitis?

    <p>Vancomycin PLUS Ciprofloxacin PLUS Clindamycin</p> Signup and view all the answers

    What is the most common organism responsible for Pyomyositis?

    <p>Staphylococcus aureus</p> Signup and view all the answers

    Which clinical sign may indicate a higher suspicion for necrotizing fasciitis?

    <p>Pain out of proportion to findings</p> Signup and view all the answers

    What is the primary treatment for a cutaneous abscess?

    <p>Incision and drainage</p> Signup and view all the answers

    Which condition indicates the need for antimicrobial therapy in a patient with a cutaneous abscess?

    <p>Diabetes or other immune suppression</p> Signup and view all the answers

    In patients with recurrent MRSA skin infections, what is the recommended approach to hygiene?

    <p>Encourage personal and hand hygiene</p> Signup and view all the answers

    Which of the following best describes a mild diabetic foot infection?

    <p>Purulence and signs of inflammation within 2 cm</p> Signup and view all the answers

    What is a recommended oral regimen for mild diabetic foot infections?

    <p>Clindamycin 300 mg PO TID</p> Signup and view all the answers

    For moderate diabetic foot infections, which medication combination is appropriate?

    <p>Ciprofloxacin plus Clindamycin</p> Signup and view all the answers

    What is the severity classification for a diabetic foot infection with systemic toxicity?

    <p>Severe infection</p> Signup and view all the answers

    Which antibiotic regimen should be avoided in outpatients with diabetic foot infections?

    <p>Ciprofloxacin 400 mg IV q12h</p> Signup and view all the answers

    What microbiological agent is primarily involved in cellulitis without an open wound?

    <p>Beta-hemolytic streptococci</p> Signup and view all the answers

    What is the recommended antibiotic for patients not on broad-spectrum antibiotics at the time of surgery for surgical site infections following contaminated procedures?

    <p>Ertapenem 1 g IV q24h</p> Signup and view all the answers

    Which combination of antibiotics is indicated for patients with hardware involvement and severe penicillin allergy?

    <p>Vancomycin PLUS Ciprofloxacin PLUS Metronidazole</p> Signup and view all the answers

    Which organism is NOT typically associated with surgical site infections following clean procedures?

    <p>Gram-negative rods</p> Signup and view all the answers

    In cases of surgical site infections with deep fascia involvement, what is the appropriate management?

    <p>Immediate surgical intervention</p> Signup and view all the answers

    What is the preferred duration for IV administration of Cefazolin in procedures involving orthopedic joint replacements?

    <p>q8h</p> Signup and view all the answers

    Which risk factor is NOT associated with increased risk for MRSA infection?

    <p>History of total hip replacement surgery</p> Signup and view all the answers

    What is the treatment of choice for saphenous vein graft harvest site infections?

    <p>Ertapenem 1 g IV q24h</p> Signup and view all the answers

    For surgical site infections in patients who are severely ill or on broad-spectrum antibiotics, what is the recommended antibiotic regimen?

    <p>Piperacillin/tazobactam PLUS Vancomycin</p> Signup and view all the answers

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