Difference between revisions of "Erythematous rash"

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==Background==
 
==Background==
 
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*These rashes can occur in a variety of inflammatory and infectious conditions, some of which can be rapidly fatal
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{{Rash red flags}}
 
==Clinical Features==
 
==Clinical Features==
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*Characterized by diffuse red skin from capillary congestion, mimicking a bad sunburn.
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{{Erythematous rashes images}}
  
 
==Differential Diagnosis==
 
==Differential Diagnosis==
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==Evaluation==
 
==Evaluation==
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*First, try applying lateral pressure to the skin and see if it sloughs (Nikolsky’s sign)
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*Then, to further narrow the differential, consider wither or not the patient is febrile or toxic in appearance
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**Patients with an erythematous rash plus fever are also at high risk for having a deadly diagnosis
  
 
==Management==
 
==Management==
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==References==
 
==References==
 
<references/>
 
<references/>
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[[Category:Dermatology]]

Latest revision as of 12:58, 16 November 2019

Background

  • These rashes can occur in a variety of inflammatory and infectious conditions, some of which can be rapidly fatal

Rash Red Flags[1]

  • Fever
  • Toxic appearance
  • Hypotension
  • Mucosal lesions
  • Severe pain
  • Very old or young age
  • Immunosuppressed
  • New medication

Clinical Features

  • Characterized by diffuse red skin from capillary congestion, mimicking a bad sunburn.

Erythematous rash

Differential Diagnosis

Erythematous rash

Evaluation

  • First, try applying lateral pressure to the skin and see if it sloughs (Nikolsky’s sign)
  • Then, to further narrow the differential, consider wither or not the patient is febrile or toxic in appearance
    • Patients with an erythematous rash plus fever are also at high risk for having a deadly diagnosis

Management

Disposition

See Also

External Links

References

  1. Nguyen T and Freedman J. Dermatologic Emergencies: Diagnosing and Managing Life-Threatening Rashes. Emergency Medicine Practice. September 2002 volume 4 no 9.