Soru

Zorluk: OrtaInfectious Diseases

Antimicrobial stewardship emphasizes selecting the appropriate agent, dose, and duration while minimizing unnecessary broad-spectrum coverage to prevent resistance. Match each of the following common infectious disease presentations with the most appropriate guideline-concordant initial management strategy.

  • A 28-year-old non-pregnant woman presenting with dysuria, urinary frequency, and suprapubic pain, without fever or costovertebral angle tenderness.Oral nitrofurantoin, fosfomycin, or trimethoprim-sulfamethoxazole
  • A 45-year-old otherwise healthy man with a 2.5 cm fluctuant, erythematous cutaneous abscess on his back and normal vital signs.Incision and drainage without systemic antimicrobial therapy
  • A 50-year-old healthy woman with unilateral, spreading erythema and warmth on her lower leg, without fluctuance, purulence, or systemic toxicity.Oral cephalexin, dicloxacillin, or penicillin V
  • A 35-year-old previously healthy man presenting with a 3-day history of productive cough, fever, and focal crackles, with no medical comorbidities.High-dose oral amoxicillin or doxycycline

Cevap

Uncomplicated cystitis requires nitrofurantoin or fosfomycin; a simple cutaneous abscess requires only incision and drainage; non-purulent cellulitis is managed with targeted beta-lactams (e.g., cephalexin); and uncomplicated outpatient community-acquired pneumonia is treated with amoxicillin or doxycycline.
Each presentation is accurately matched to its guideline-recommended empiric therapy. The choices highlight key stewardship concepts: avoiding fluoroquinolones in simple cystitis, relying on source control for simple abscesses, targeting streptococci rather than MRSA in non-purulent cellulitis, and utilizing amoxicillin or doxycycline for uncomplicated outpatient pneumonia.

Adım Adım Çözüm

1
Analyze the clinical presentation of the 28-year-old woman.
Identified as uncomplicated cystitis.
Choosing targeted agents like nitrofurantoin minimizes collateral damage and adheres to stewardship guidelines, avoiding fluoroquinolones.
2
Evaluate the 45-year-old man with a fluctuant abscess.
Identified as a simple abscess requiring incision and drainage without antibiotics.
Systemic antibiotics do not improve cure rates for small, simple abscesses without systemic signs, and their use increases the risk of adverse effects.
3
Assess the 50-year-old woman with spreading erythema.
Identified as non-purulent cellulitis, best treated with cephalexin or dicloxacillin.
Because non-purulent cellulitis is overwhelmingly caused by Streptococcus species, empiric MRSA coverage (e.g., vancomycin, linezolid) is unwarranted.
4
Review the 35-year-old man with acute respiratory symptoms.
Identified as outpatient community-acquired pneumonia (CAP) in a healthy host.
Guidelines recommend amoxicillin or doxycycline for outpatients without comorbidities or recent antibiotic exposure.

Anahtar Kavram

Antimicrobial stewardship and guideline-concordant empiric therapy for common outpatient infections.
Bu soruyu puanla