Causes/ manifestations of shingles, atopic dermatitis, urticaria, cellulitis Flashcards
(15 cards)
Which condition is herpes zoster commonly referred to as?
Shingles
What causes shingles?
Reactivation of varicella-zoster virus
Appears in adulthood years after a primary infection of varicella in childhood
How does varicella-zoster virus behave?
Lies dormant on a crainial nerve or a spinal nerve dermatome until it is activated years later
What nerves does the varicella-zoster virus affect?
The cranial nerve ONLY; this is what causes unilateral manifestations (does not cross the body midline)
Chronic inflammatory condition
Atopic dermatitis
What is the cause of atopic dermatitis?
Unknown, immune system malfunction (IgE elevation)
What could be accompanied by atopic dermatitis?
Asthma and allergic rhinitis
When is atopic dermatitis most common?
infants and resolves by early adulthood
Red to brownish-gray skin patches, pruritus, thickened irritated skin are manifestations for?
Atopic dermatitis (eczema)
Raise erythematous welts
Urticaria (hives)
Type 1 hypersensitivity reaction, emotional stress, usually short-lived; can impair breathing if around face/neck
Urticaria
Welts that blanch and pruritus
Urticaria
Occurs deep in the dermis and subcutaneous tissue; swollen, warm, tender, redness; will also see indicators of infection
Cellulitis
What could untreated cellulitis cause?
Sepsis
What bacteria typically causes cellulitis?
Staphylococcal or stretococcal