Dermatology - Emergency Conditions Flashcards
Name some emergency dermatological conditions
- Anaphylaxis and angioedema
- Toxic epidermal necrolysis
- Stevens-Johnson Syndrome
- Acute meningococcaemia
- Eczema herpeticum
- Necrotising fasciitis
Angioedema and anaphylaxis: causes
Angioedema and anaphylaxis and urticaria: presentation
Angioedema, anaphylaxis and urticaria: management
Urticaria antihistamines: fexoferadine
Angioedema, anaphylaxis and urticaria: complications
What is this?
Urticaria
What is this?
Angioedema
Outline 4 important conditions that are severe cutaneous drug reactions
- Erythema nodosum
- Erythema Multiforme
- Steven Johnson syndrome
- Toxic epidermal necrolysis
What is this? Outline some triggers for this condition
- Erythema multiforme
- Hypersensitivity reaction, usually triggered by infection (HSV)
- Normally affects young adults M>F
Triggers
- Most common: HSV, mycoplasma pneumoniae
- Viruses: VZV, adenoviruses, HIV, hepatitis, CMV
- Drugs (uncommon 10%): barbiturates, NSAIDs, penicillins, sulphonamides, nitrofurantoin
Outline the PC and management of erythema multiforme
What is this? Outline the PC and some investigations for this condition
Outline the causes of erythema nodosum and the management
-Stop the drug that is thought to be causing the reaction will lead to resolution within 1 week or 2.
In the meantime:
- If patient is well: symptomatic treatment is justified
- If the patient is unwell, call for senior help
What is this? Give a description of this condition
What is toxic epidermal necrosis and what features would you expect to see on histopathology?
How would you manage STS and TEN? Outline some complications
The patient is seriously ill and must be managed in ITU - usually with joint plastic and dermatology management
- Supportive care: antiseptics, analgesia and ophthalmology input
- Steroids, IVIG and immunosuppression
What is a non-blanching rash? Give a differential diagnosis for this presentation
What investigations should you do for someone presenting with non-blanching rash?
Which investigations are specific to some conditions on the differential diagnosis for non-blanching rash?
