Bacterial Infections (PEARLS)
The NCCPA™ PANCE Dermatology Content Blueprint covers three dermatologic bacterial infections
||An acute bacterial skin and skin structure infection of the dermis and subcutaneous tissue; characterized by pain, erythema, warmth, and swelling. Margins are flat and not well demarcated.
- Caused by Staphylococcus and Streptococcus in adults
- H. influenzae or strep pneumonia in children
Treat mild cellulitis (MSSA) with Cephalexin or Dicloxacillin
Treat methicillin-resistant Staphylococcus aureus infection (MRSA) with
- Trimethoprim-sulfamethoxazole (TMP-SMZ) 1 DS tab PO BID
- Clindamycin 300–450 mg PO
- Doxycycline 100 mg PO BID
- Intravenous Vancomycin or Linezolid
Cellulitis with erythematous tender swelling of the left lower extremity
||A distinct form of cellulitis notable for acute, well-demarcated, raised superficial bacterial skin infection with lymphatic involvement almost always caused by Streptococcus pyogenes
- Symptoms may include redness and pain at the affected site, fevers, and chills
Mild disease can be treated with Penicillin G
Erysipelas. This patient has large, confluent erythematous plaques. A bulla is present near the angle of her jaw.
||Child < 6 y/o complaining of non-painful, pruritic lesions on the face
- The main symptom is red sores that form around the nose and mouth. The sores rupture, ooze for a few days, then form a yellow-brown crust
- “honey-colored” and weeping
- Most commonly caused by S. aureus
Treatment is topical mupirocin, dicloxacillin, cephalexin for more severe illness
- Complications: poststreptococcal glomerulonephritis
Impetigo with crusted patches around the mouth.
Back to PANCE Blueprint Dermatology (5%)