Fever and rash

Petechial

  1. Infectious
    1. Endocarditis
    2. Meningococcemia
    3. Gonococcemia
    4. Gram negative bacteria
    5. Enteric bacteria
    6. RMSF
    7. Enterovirus
    8. Dengue Fever
    9. Hepatitis B
    10. Rubella
    11. EBV
    12. Rat bite fever
    13. Epidemic typhus
  2. Noninfectious
    1. Allergy
    2. Thrombocytopenia
    3. Scurvy
    4. Lupus
    5. HSP
    6. Hypersensitivity vasculitis
    7. Rhumatic fever
    8. Amyloidosis

Pediatric

  • Skin changes are often the most concerning finding in a pediatric fever

Differential

Workup

  1. CBC
  2. Blood Cultures
  3. Basic Metabolic Panel (evaluating creatine)
  4. Chest Xray if pulmonary symptoms
  5. Lumbar Puncture depending on clinical findings and if not thrombocytopenic

Maculopapular

  1. Infectious
    1. Typhoid fever/typhus
    2. Secondary syphilis
    3. Lyme
    4. Meningococcemia
    5. Mycoplasma
    6. Psittacosis
    7. Rickettsia
    8. Leptospiroisis
    9. Ehrlichiosis
    10. Enterovirus
    11. Parvovirus (B19)
    12. 5th Dz
    13. HSV 6
    14. Rubeola
    15. Rubella
    16. Arbovirus
    17. EBV
    18. Adenovirus
    19. Primary HIV
    20. Streptobacillus moniliformis
  2. Noninfectious
    1. Allergy
    2. Serum Sickness
    3. Erythema multiforme
    4. Erythema marginatum
    5. Lupus
    6. Dermatomyositis
    7. Sweet's syndrome
    8. Acroderm enteropathica

Vesico-Bullous

  1. Infectious
    1. Staph
    2. GC
    3. Rickettsia
    4. HSV
    5. Varicella
    6. Vibrio vulnificans
    7. Folliculitis (Staph, Candida, Pseudomonas)
    8. Enterovirus
    9. 5th Dz
    10. Parvovirus B19
    11. HIV
  2. Noninfectious
    1. Allergy
    2. Plant dermatitis
    3. Eczema vaccinatum
    4. Erythema multiforme bullosum

Erythematous

  1. Infectious
    1. Staph/strep (toxic shock, scarlet fever)
    2. Ehrlichiosis
    3. Strep viridans
    4. C. haemolyticum
    5. Kawasaki's
    6. Enterovirus
  2. Noninfectious
    1. Allergy
    2. Vasodilation
    3. Eczema
    4. Psoriasis
    5. Lymphoma
    6. Pityriasis rubra
    7. Sezary syndrome

Urticarial

  1. Infectious
    1. Mycoplasma
    2. Lyme
    3. Enterovirus
    4. HIV
    5. Hep B
    6. Adenovirus
    7. EBV
    8. Strongyloides
    9. Trichinosis
    10. Schistosomiasis
    11. Onchocerciasis
    12. Loiasis
  2. Noninfectious
    1. Allergy
    2. Vasculitis
    3. Malignancy
    4. Idiopathic

Source

  • Tarascon Adult Emergency Pocketbook
  • Rashes
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